Fitness Archives - Amazing Health Advances

Preventing Rotator Cuff Injuries

The AHA! Team — Mon, 08 Sep 2025 05:38:15 +0000

Morgan deBlecourt via Duke Health – Rotator cuff tears are more common than you may think. About 10% of people in their 50s and half over the age of 70 will have one. While many rotator cuff tears are related to aging, they can occur in younger people as a result of overuse, poor shoulder mechanics, or injury. Rotator cuff injuries affect all types of people — sedentary adults, weekend warriors, and elite athletes. Fortunately, there are steps you can take to reduce your risks. “Good posture in the shoulder blades, stretching, and some very simple strengthening exercises will help prevent many of the shoulder problems you could have,” said Jocelyn Wittstein, MD, a shoulder specialist at Duke Health. “Also, modifying lifting and exercise practices can reduce the risk of shoulder injury or reinjury.” Overhead Activity Leads to Shoulder Injuries It’s true that baseball pitchers suffer rotator cuff tears — or rather, fraying on the edges of some tendons — because of the extreme position of the shoulder and the tremendous force they exert on their shoulders every time they throw the ball. But overhead activity of all kinds is what tends to injure people: reaching up repeatedly to paint a wall, putting a heavy suitcase in an overhead bin, or serving a tennis ball. “Any time your arms are raised up over your head, the rotator cuff might be in an awkward position,” said Dr. Wittstein, a Duke orthopaedic surgeon. “This in combination with lifting or lowering something heavy away from the body really strains the rotator cuff.” The first sign of a rotator cuff injury is often nagging shoulder pain when performing everyday activities such as washing your hair, lifting a gallon of milk, or reaching for something on the back seat of the car. Pain is usually felt at the side of the shoulder and can often radiate toward the elbow. Injured shoulders can also be troublesome at night when lying down allows the inflamed joint to stretch or when sleeping on your side. Occasionally, nighttime pain can get so bad that sleep is possible only in a reclining chair — and some patients can’t sleep at all. Exercises Can Prevent Rotator Cuff Injuries The shoulder has more range of motion than any other joint. Most of its stability and movement relies on the small rotator cuff muscles and the larger muscles that surround the shoulder joint. Traditional weightlifting and aerobic exercise provide many benefits but typically do not focus on strengthening and stretching the complicated assembly of muscles that keep the shoulder joint stable and healthy. Dr. Wittstein said that a shoulder exercise program should work the muscles that retract the shoulder blades, stretch the chest and the back of the shoulder joint, and strengthen all the muscles of the rotator cuff. These exercises will strengthen your rotator cuff and help prevent injury, whether you are active or inactive, young or old. Treatment Options for Torn Rotator Cuffs If you tear your rotator cuff, there are several treatment options. The type of treatment depends not only on the extent of the injury but also on your age and functional demands. While many complete rotator cuff tears benefit from surgical repair, surgery is not always necessary. Cortisone injections can reduce pain but should be used sparingly, as they can affect the ability of the rotator cuff to heal if you decide to have a surgical repair in the near future. Other medications like Tylenol and anti-inflammatories may also help. People with a partial tear or who want to avoid surgery can benefit from physical therapy, which they are encouraged to continue at home. Sometimes, strengthening is all that’s needed, even if your rotator cuff is torn. That’s because “four separate rotator cuff tendons surround the shoulder,” Dr. Wittstein explained. “If you have torn half of one tendon, you still have three and a half tendons left. If those are strong, it can often fully compensate for the torn part.” However, rotator cuff tears that involve the full thickness of the tendon and remain painful may enlarge over time. “Those are the rotator cuff tears we are more likely to repair with surgery early on,” she says. She added, “Many people with a small tear can have a pain-free, strong, healthy shoulder with full ability to do an overhead activity. That’s why keeping those muscles strong is so important.” If you think you may have a rotator cuff injury, consider scheduling an appointment with a Duke shoulder specialist. To read the original article click here.

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The Benefits of a Trampoline Workout & Rebounding

The AHA! Team — Wed, 03 Sep 2025 05:23:54 +0000

Kyra Oliver via Dr. Axe – Many people first fall in love with trampolines as children, but did you know that a trampoline workout can benefit adults just as much as trampolines bring joy to the little ones? It’s true. In addition to being fun, a trampoline workout, also known as rebounding, has many great health benefits — particularly for your lymphatic system. For instance, did you know that rebounding can burn more calories than walking or jogging? Or that it’s a great way to work your major muscle groups because it allows you to work them through their full ranges of motion? Or that it’s downright fun?! A trampoline workout can also strengthen your body while detoxifying the cells within it. Plus, it’s a low-impact exercise option that’s very easy on the joints — something running can’t match. While you may think the type of large trampolines you seen in backyards may be a bit much, there are small versions that can fit right in your living room and are easy to store. So get ready to jump around and improve your health all at the same time. Read on to learn how to do a trampoline workout and how exactly it strengthens the body. What Is Rebounding? Trampoline and tumbling exercises have been around for a very long time and can be traced to archeological drawings found in ancient China, Egypt and Persia. The firs modern trampolines were developed in 1934 by George Nissen and Larry Griswold at the University of Iowa, according to the official website of the Olympics. Trampolines were originally used to train astronauts and as a training tool for other sports, such as acrobatics, tumbling, diving, gymnastics and freestyle skiing. Eventually, trampolines became so popular to the point of becoming a sport in the Olympic Games. The first Trampoline World Championships took place in 1964, and trampoline was first recognized as a sport in the U.S. in 1967. The double mini-trampoline competition was added in 1978 and began as two individual mini trampolines, separated by a small table covered by a mat. Later, a one-piece unit was developed by Bob Bollinger and is used today as the official equipment for that event. Trampolines have become useful in the understanding of gravity and its effects on exercise. The Journal of Applied Physiology recorded a study by NASA in 1980 on rebounding by testing eight young males ages 19–26. The goal was to understand body acceleration distribution and its relation to how it was created. Here’s what the researchers concluded: The results indicate that, for similar levels of HR and VO2, the magnitude of the biomechanical stimuli is greater with jumping on a trampoline than with running, a finding that might help identify acceleration parameters needed for the design of remedial procedures to avert deconditioning in persons exposed to weightlessness. Trampoline Workout Benefits We all know there are many benefits of exercise, but what are the benefits of rebounding, specifically? Let’s explore. 1. Easy on the Joints Working out on the trampoline, or rebounding, has way less impact on the joints, soft tissue and skeleton. Due to how a trampoline is made, most often using either springs or bungee bands, it absorbs much of the impact at every bounce. G-force The NASA study previously mentioned notes that there seems to be more balance of pressure or force, known as G-force, when on the trampoline. Pressure is more evenly distributed at the ankle, back and forehead when rebounding, whereas when running, the pressure is mostly all placed on the ankles, often causing more frequent injury. That means simply switching to a trampoline workout routine can help naturally reduce joint pain and help you avoid common running injuries. 2. Strengthens Cells and Improves Cardiovascular Development A trampoline workout can provide impressive aerobic exercise benefits by strengthening the heart. When tested, the work required to perform trampoline exercise at equivalent levels of effort was significantly greater while on the trampoline than while running. Increase oxygen uptake When oxygen reaches our cells, it helps strengthen them and provide the ability to endure more exercise efficiently, and because the body is able to increase oxygen uptake when rebounding, versus some other physical activities, it’s possible to get a much better workout. Rebounding can increase oxygen uptake because more oxygen can reach the cells due to the gravity changes that occur when bouncing. In some studies, when testing on the treadmill, the ability to uptake more oxygen was greater when on the trampoline. This could allow participants to perform exercise for longer periods of time. Effects of daily short bouts of trampoline exercise A study regarding the effects of daily short bouts of trampoline exercise during eight weeks on the pulmonary function and the maximal oxygen uptake of children with cystic fibrosis was reported by the International Journal of Sports Medicine. Six girls and two boys with cystic fibrosis, 10–13.5 years of age, participated in a prescribed exercise program on a mini trampoline. The training consisted of three short rounds of trampoline exercise. The study showed that their maximal oxygen uptake (VO2 max) improved during the exercise period. In addition, trampoline exercise programs are suggested as other types of training to add in order to avoid monotony in the training for many patients. 3. Can Improve Immune System Function Due to Lymph Flow Rebounding can lead to increased lymph fluid circulation, which helps boost the immune system by providing a greater white blood cell activity. The lymphatic system is part of your circulatory system and transports a clear, colorless fluid, called lymph, that flushes toxins from your body. It’s believed that there is an increase in the circulation of this fluid when the lymphatic valves are opened during a change in gravitational pull. This particular change occurs upon the moment you land on the trampoline, thanks to gravity. Then, upon leaving the surface, the lymphatic valves are opened. The increased G-force g that occurs when you land causes a surge of lymphatic drainage, which improves circulation and, therefore, may help detoxify your entire system. 4. Helps with Balance Another study reported by the U.S. National Library of Medicine cited the effects of different types of exercise on postural balance in elderly women. These exercises can help prevent functional limitations due to aging, therefore reducing the risk of falls. This study aimed to evaluate the effects of three different exercises: mini trampoline, aquatic gymnastics and general floor gymnastics. Seventy-four physically independent elderly women were randomly assigned to three intervention groups. Each group performed physical training, including cardiorespiratory, muscular strength and endurance, flexibility, and sensory-motor exercises, for 12 weeks. To determine the effects on each intervention group, postural balance tasks were performed. The study concluded that there were significant improvements in the postural balance of elderly women after 12 weeks of training and ultimately provides further evidence that exercise, like a trampoline workout, that includes balance postures can promote health in elderly women. 5. Builds Physical Strength, Muscular Development and Proprioception for Athletes Rebounding is often said to improve physical strength and muscular development as well as proprioception, which is the ability to sense the position, location, orientation and movement of the body and its parts. A study published in the International Journal of Preventative Medicine randomly divided 20 patients with Parkinson’s disease “into two equal groups of weight-bearing exercises and rebound exercise with no significant differences in age, weight, and height.” They compared results on range of motion, proprioception and quality of life after eight weeks. The researchers found that both groups saw significant improvements in all three areas, but the improvement rate was greater across the board in the rebounding therapy group. How to Choose a Good Rebounder Because many injuries can occur while on a trampoline, it’s critical that you don’t go the cheaper route because cheaper trampolines tend to break or malfunction, causing injury. They also can lack the support needed to be effective. It’s important that your rebounder has at least 32 springs that taper at the end. This provides the proper flexibility and a more even bounce. Steel construction lasts longer, too. Some models offer support bars, which may be useful, especially for beginners or the elderly. How to Start Using Your Rebounder Rebounders, or mini trampolines, can be used almost anywhere indoors or outdoors. Remember to start slow with small jumps, and make sure you get used to the equipment before you increase to bigger jumps. A trampoline workout is one idea for burst training at home. You can include some traditional exercise, such as jumping jacks, to get you started. Rebounding is a great low-impact exercise that’s fun and different. In just 15–20 minutes a day, you can burn calories, gain muscle strength and enhance your balance while improving your immune system — and helping turn on the afterburn effect. Trampoline or Rebounding Workout Time: 20–45 minutes, depending on number of sets performed Warmup: Basic Trampoline Bounce The basic bounce can tone your quads, glutes and calf muscles. Stand on the mini trampoline with your feet shoulder-width apart. Relax your arms and shoulders but with a slight bend at the elbow. Lightly bounce up and down while keeping a slight bend in the knees. Your feet should come just a few inches off the trampoline. Repeat 20–30 times. Rest for 15 seconds, and repeat two more times for a total of three rounds. Main Set: Jumping Jacks A classic, this gets your heart rate up while engaging the inner and outer thighs. Standing with feet together, jump out while extending arms out, up and overhead. Then return to the starting position, and repeat. Perform 30–45 jumping jacks. Planks This plank exercise variation works your entire core. Start in plank position with your forearms in the middle of the trampoline and your feet on the floor (unless your trampoline is large enough for your entire body). Hold the plank position for 20–30 seconds. Release for 10 seconds, and repeat three to four times. High Knees This is a great exercise hack that gets your heart rate moving while working your core muscles. Stand with feet hip distance apart. Raise your right knee, return to start, then raise your left knee. Once you feel comfortable, begin doing it as if you are running in place. Repeat 20 times (one on each side counts as one full rep). Planks to Pushups Advanced Move This exercise works your entire core and provides some upper-body strength in the arms and chest. Keeping abs fully engaged, start in plank position with your forearms in the middle of the trampoline and your feet on the floor (unless your trampoline is large enough for your entire body). Transition to your hands one arm at a time, then do a pushup and return to your forearms for another plank. Make sure that your abs are engaged the entire time. Do this exercise for six to 10 reps. Trampoline Squats Wondering how to strengthen your core? Well, this exercise requires you to engage your core muscles. It strengthens glutes and quads as well as your core if properly engaged. Stand on the mini trampoline with your feet shoulder-width apart and arms at your sides. Jump up, and land in a squat position with your knees bent, butt back and thighs parallel to the ground, like sitting down in a chair. It may be helpful to place your arms straight out in front of you for balance. Return to the starting position, and repeat 15–20 times. At first, you may want to take it slow. Once you have mastered the exercise, you can begin to do it a bit faster with continuous movement similar to a jump squat that you would do on the ground. Repeat the entire set three to four times or as best as possible. Precautions It’s extremely important that children are always supervised when on a trampoline of any sort. The condition and quality of trampolines are critical in preventing injuries. Because there...

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Cold Plunges Actually Change Your Cells, uOttawa Study Finds

The AHA! Team — Wed, 27 Aug 2025 05:20:12 +0000

University of Ottawa via EurekAlert! – Ever wondered what happens to your body when you take those trendy ice baths? Scientists at the University of Ottawa just found out, and it’s pretty fascinating. A new study conducted at the Human and Environmental Physiology Research lab (HEPRU) at the University of Ottawa has unveiled significant findings on the effects of cold water acclimation on autophagic (the cells’ recycling system, which promotes cellular health) and apoptotic (the programmed cell death that gets rid of damaged cells) responses in young males. The research highlights the potential for cold exposure to enhance cellular resilience against stress. The study, conducted by Kelli King, postdoctoral fellow, and Glen Kenny, Full Professor at uOttawa’s School of Human Kinetics and Director of HEPRU, involved ten healthy young males who underwent cold-water immersion at 14°C (57.2°F) for one hour across seven consecutive days. Blood samples were collected to analyze the participants’ cellular responses before and after the acclimation period. “Our findings indicate that repeated cold exposure significantly improves autophagic function, a critical cellular protective mechanism,” says Professor Kenny. “This enhancement allows cells to better manage stress and could have important implications for health and longevity.” The research revealed that while autophagy was initially dysfunctional after high-intensity cold stress, consistent exposure over a week led to increased autophagic activity and decreased cellular damage signals. “By the end of the acclimation, we noted a marked improvement in the participants’ cellular cold tolerance,” explains King, the study’s first author. “This suggests that cold acclimation may help the body effectively cope with extreme environmental conditions.” The implications of this study extend beyond athletic performance. Cold water immersion has gained popularity for its potential health benefits, and this research provides some scientific backing for its efficacy. The findings suggest that proper autophagic activity could not only extend cellular longevity but also prevent the onset of various diseases. As the use of cold exposure becomes increasingly mainstream, understanding its effects on cellular mechanisms is vital. Professor Kenny emphasizes, “This work underscores the importance of acclimation protocols in enhancing human health, especially in contexts where individuals are exposed to extreme temperatures.” “We were amazed to see how quickly the body adapted,” notes King. “Cold exposure might help prevent diseases and potentially even slow down aging at a cellular level. It’s like a tune-up for your body’s microscopic machinery.” These results apply to young males and more research is needed to see if it would also apply to other cohorts. The study, titled “The Effect of 7-Day Cold Water Acclimation on Autophagic and Apoptotic Responses in Young Males”, was published in Advanced Biology. Journal Advanced Biology DOI 10.1002/adbi.202400111 To read the original article click here.

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Avoid Deadly Blood Clots with Two Natural Extracts

The AHA! Team — Mon, 25 Aug 2025 05:27:07 +0000

Lori Alton via NaturalHealth365 – According to the Centers for Disease Control and Prevention (CDC), as many as 900,000 Americans could be affected by venous thromboembolisms (blood clots) every year – with roughly 100,000 dying from them. Believe it or not, the simple act of sitting – for long periods – may be hazardous to your health. The American College of Cardiology reports that sitting at a desk for more than four hours a day increases the odds of deep vein thrombosis by a frightening 48 percent. Deep vein thrombosis, or DVT, occurs when a blood clot forms in a vein located deep in the body. In a life-threatening complication, the clot may break loose and make its way to the lung, leading to a potentially fatal pulmonary embolism. Fortunately, recent research shows that you can combat DVT – safely and effectively – with the help of two natural extracts. Blood clots affect close to one million Americans According to the Centers for Disease Control and Prevention (CDC), as many as 900,000 Americans could be affected by venous thromboembolisms (blood clots) every year – with roughly 100,000 dying from them. In fact, the risks of prolonged sitting are so pronounced many are calling sitting “the new smoking.” In truth, Western medicine offers few real solutions. Anticoagulant medications prescribed by conventionally trained doctors can feature serious side effects – along with the risk of hemorrhage or uncontrolled bleeding. However, recent research shows that two natural substances, French maritime pine bark extract, and nattokinase, can break down small clots before they grow – and even stop them from forming in the first place. Both can inhibit clotting, improve microcirculation in the legs, and increase the elasticity of blood vessel walls. What are the symptoms and signs of a blood clot? Unfortunately, about half the time, there are no apparent signs of deep vein thrombosis. When symptoms occur, they tend to develop suddenly – and can include swelling, fatigue, tenderness, and pain in the affected leg. Reddened skin, otherwise discolored skin, and warm skin on one or both legs can also be warning signs. A previously invisible vein that suddenly becomes visible is also a red flag that may indicate a possible blood clot. Call your doctor if you notice any of these warning signs – especially if they develop suddenly. Of course, aging can make you more susceptible to blood clots – especially when living a sedentary lifestyle. Being obese, smoking cigarettes, having surgery, and taking oral contraceptives can also raise your risk. French maritime pine bark extract: A powerful natural vasodilator Pine bark extract, also known as pycnogenol, is rich in beneficial polyphenols, including procyanidins and phenolic acids. With potent antioxidant and anti-inflammatory properties, pine bark extract dilates blood vessels and reduces blood platelets’ stickiness, making them less likely to form clots. French maritime pine bark extract also increases the activity of an enzyme that generates beneficial nitric oxide in blood vessels. Several studies have demonstrated that pine bark extract is especially effective in preventing blood clots from forming after prolonged sitting. French maritime pine bark extract has also been shown to help reduce post-thrombotic syndrome, a common DVT complication in which blood collects in the affected leg and causes swelling, discoloration, and leg ulcers. In a year-long study, French maritime pine bark extract was found to be at least as effective as compression stockings in treating post-thrombotic syndrome. Not only did no new cases occur in the participants who took pine bark extract, but leg and ankle swelling was significantly decreased when compared to the compression stockings group. Researchers concluded that pine bark extract may have significant long-term protective effects following a thrombotic event. Another plus for French maritime pine bark extract is that compliance was better in the pine bark group. Researchers noted that taking the extract was not as “bothersome” to the participants as wearing the compression stockings, especially in warm weather. Nattokinase: A potent protector made from soy Nattokinase is a proteolytic enzyme made from soybeans fermented with a specific bacterium, Bacillus subtilis. It helps to prevent clotting by breaking down fibrin – the main protein found in clots – and also breaks down fibrinogen, the precursor to fibrin. It achieves this without causing side effects or undesirable bleeding. Nattokinase, combined with pine bark extract, has produced impressive results in studies. In a randomized, placebo-controlled human trial published in Angiology, passengers on a lengthy overseas flight were given either a placebo or a nattokinase and pine bark extract combination. The combination prevented each and every passenger who took it from experiencing DVTs. While there were zero DVTs in the supplement group, 5.4 percent of the passengers in the placebo group did experience DVTs. In contrast to the supplement group, passengers in the placebo group experienced a 12 percent increase in leg swelling during the flight – while supplemented passengers actually enjoyed a 15 percent reduction. The conclusion is that nattokinase and French maritime pine bark extract helped to prevent deep vein thrombosis in people who spent long periods sitting – thereby reducing the threat of sudden death from pulmonary embolism. If you must sit at a desk for prolonged periods, experts recommend getting up every hour and walking around for at least five to ten minutes to prevent blood from pooling in your legs. If interested, we suggest you discuss nattokinase and pine bark extract supplementation with your holistic healthcare provider. And, if they don’t know about these substances – find a doctor who understands the value of natural remedies. Sources for this article include: NIH.gov Lifeextension.com Globalhealing.com NIH.gov NIH.gov To read the original article click here.

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Reduce Stress & Promote Detoxification with One Easy Exercise

The AHA! Team — Mon, 18 Aug 2025 21:54:10 +0000

Dena Schmidt via NaturalHealth365 – Breathing is something many of us take for granted. However, most people tend to breathe in a shallow way, contributing to stress and limiting oxygen intake. On the other hand, deep breathing activates the body’s relaxation response, supports circulation, and promotes overall well-being. Why is deep breathing so important? Proper breathing helps oxygenate the body and supports the movement of the lymphatic system, which plays a key role in immune function. While the body primarily eliminates toxins through the liver, kidneys, and digestive system, deep breathing can aid in overall detoxification by improving oxygen exchange and circulation. Reduce stress by activating your body’s detoxification system The lymphatic system neutralizes and transports toxins from the cells and dumps them into the circulatory system. The toxins are then cycled through the liver and kidneys and eventually excreted. However, while the circulatory system is pumped by the heart, the lymph system does not have such a pump. Breathing and body movement are required for it to work effectively. Without sufficient bodily activity and deep breathing, effective detoxification isn’t possible. The lymphatic system becomes sluggish, resulting in fatigue, inflammation, weight gain, and high blood pressure. Fortunately, deep breathing exercises are one simple exercise that can make all the difference to the health of the lymphatic system. Best deep breathing exercises to promote detoxification Eastern cultures and yogic traditions have long been aware of how important deep, mindful breathing is to health and well-being. The breath is central to practices like yoga and tai chi. Deep breathing brings a wealth of benefits to health and well-being. Here are some of the top reasons to remember to breathe deeply: Stimulates organs and lymph flow: The expanding and contracting effect of the diaphragm during deep breathing massages the internal organs and the lymphatic system. Cellular detoxification and oxygenation: Deep breathing naturally stimulates the body to rid itself of toxins, allowing more nourishing oxygen to reach the cells. Relaxation: Deep breathing exercises also trigger the parasympathetic nervous system, called the “relaxation response.” This promotes a calm sense of well-being. Breathing is a natural way to reduce stress and its effects on the body and mind. Fitness and weight loss: Breathing is essential to cardiovascular capacity and maximizing the effects of each workout. By reducing stress, deep breathing also encourages increased fat burning, so the body doesn’t burn glycogen instead of fat. Deep breathing exercises can be performed anywhere, anytime. Strive to cultivate the habit of breathing deeply as much as possible throughout the day, not just during your fitness routine or yoga practice (although it’s extremely beneficial during these times as well). For optimal benefits during deep breathing exercises, exaggerate your breath, lungs’ expansion, and diaphragm movement. Expand your belly and abdominal muscles during each inhale, and empty your lungs completely when you exhale. Even just a few minutes a day of this type of breathing can work wonders for the body, mind, and spirit. Sources for this article include: NIH.gov To read the original article click here.

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Slash Risk of Dementia up to 40% with THIS Science-Backed Approach

The AHA! Team — Wed, 06 Aug 2025 05:03:21 +0000

Patrick Tims via NaturalHealth365 – Count to three. That’s how long it takes for someone in the world to develop dementia. The number of people living with this condition will double in just two decades. The good news? There are ways to defend against cognitive decline – nutrition, mental stimulation, and exercise, as highlighted in a study published in the British Journal of Sports Medicine. Aerobic exercise is one of the most powerful lifestyle factors for protecting brain health. Research shows that staying physically active can significantly lower the risk of dementia, making movement a key ingredient in lifelong cognitive wellness. So, how does exercise protect your brain? And what kind of workout is most effective? Let’s dive in. Exercise: A powerful defense against dementia The fight against dementia starts with movement. Research shows that high cardiorespiratory fitness (CRF) can lower the overall risk of dementia by 40% and even reduce risk by 35% in those genetically predisposed to the condition. Why? Because exercise strengthens both the heart and lungs, two key players in maintaining cognitive function. Drawing from the UK Biobank data, a new study analyzed over 61,000 adults aged 39 to 70 over 12 years. The findings were clear: Those with higher CRF performed significantly better on cognitive tests. Even individuals with a moderate to high genetic risk for dementia saw a 35% lower risk if they maintained high CRF. Participants with high CRF had a 40% lower overall risk of developing dementia. On average, they also delayed dementia onset by 1.5 years. CRF – your body’s ability to deliver oxygen during exercise – directly impacts memory, processing speed, and cognitive resilience. Just six minutes of stationary cycling was enough to reveal these benefits in the study. While no single factor can guarantee protection against dementia, regular aerobic exercise is one of the most powerful tools available for preserving brain health and reducing the impact of genetic risk. Not all exercise protects against dementia – cardio is key When it comes to brain health, not all exercise is created equal. Cardiorespiratory fitness (CRF) is one of the most effective physical activities for slowing cognitive decline. However, knowing that aerobic exercise is one of the most powerful defenses against dementia is one thing – making it a consistent habit is another. The key is finding activities that you enjoy and can sustain long-term. Here’s how to seamlessly integrate CRF-boosting movement into your lifestyle: 1. Start small and build up If you’re new to aerobic exercise, start with 10-15 minutes a day and gradually increase the duration and intensity. A brisk walk around the neighborhood, a light bike ride, or even a short dance session in your living room can get your heart pumping. 2. Make movement a daily habit Schedule exercise like an important meeting. Whether it’s a morning walk, an afternoon swim, or an evening dance class, consistency matters more than intensity. The goal is to keep your heart and lungs working regularly. 3. Try fun, social activities Exercising with others can make it more enjoyable and sustainable. Join a dance class, sign up for a group swim session, or go on weekend hikes with friends. Social engagement is a brain booster, so combining it with movement creates a double benefit. 4. Take advantage of everyday movement You don’t need a gym membership to stay active. Take the stairs instead of the elevator, park farther from the store, or walk while taking phone calls. Small bursts of movement throughout the day add up. 5. Mix it up to stay engaged Variety prevents boredom and ensures you’re challenging different muscle groups. Alternate between cycling, power walking, swimming, and dancing to keep things interesting while maximizing CRF benefits. 6. Track your progress Using a fitness tracker or journal to monitor your activity levels can help you stay motivated and see your improvement over time. Even tracking how you feel mentally and physically after exercise can reinforce the habit. 7. Listen to your body The goal is lifelong brain health, so prioritize consistency over intensity. If you’re fatigued, opt for a lower-impact activity like swimming or a leisurely bike ride instead of skipping movement altogether. By making these small but meaningful changes, you’re not just improving your physical health but actively protecting your brain for years to come. Sources for this article include: BMJ.com Studyfinds.org Alzint.org To read the original article click here.

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Forest Bathing to Boost Anticancer Immunity

The AHA! Team — Wed, 30 Jul 2025 06:38:14 +0000

Michael Greger M.D. FACLM via Nutrition Facts – Spending time in a forest, or even anticipating it, significantly lowers levels of cortisol (a stress hormone), more so than being in an urban area. Natural killer cells are one of the ways our body fights off cancer, and visiting a forest can induce a significant increase in both their numbers and their activity. I’ve previously shown how exposure to nature can have self-reported psychological benefits, but there was a dearth of data on changes in objective measurements, so I was excited to see this paper on the effects of forest bathing, “a traditional practice characterized by visiting a forest and breathing its air,” on levels of the stress hormone cortisol in the participants’ saliva. The level of cortisol in our saliva is considered an indicator of our stress level, and study participants’ salivary cortisol levels were significantly lower after walking in a forest or even just hanging out in one (“forest watching”), compared to walking or just being in a city, as you can see at 0:49 in my video Boosting Anticancer Immunity with Forest Bathing. However, the same effect was found before they went to the forest, too. Indeed, “forest bathing, in particular forest watching, was associated with significantly lower cortisol levels both before and after this practice if compared with visiting an urban area.” Therefore, it appears that just the thought of spending time in a forest relieves stress. So, “when comparing the effects of forest bathing versus urban visiting, the anticipated placebo effect…may play a more important role in influencing cortisol [stress] levels than the actual experience” of being in the forest. I was ready to dismiss this as just another nebulous psychological effect until I read this: “Studies on the effects of ‘Shinrin-yoku’ [forest bathing] on the immune function showed that visiting a forest can induce a significant increase in the number and activity of natural killer (NK) cells,” one of the ways our body fights off cancer. That got my attention. It all started with this study: Twelve men were taken on a long weekend trip to walk in the forest, and nearly all of them (11 out of 12) showed higher natural killer cell activity afterward. It wasn’t just a little increase either; they had about a 50 percent increase in NK cell activity after the trip compared to before they went to the forest, as you can see at 2:00 in my video. Now, exercise alone can affect immune function, but “there were no significant differences in walking steps before and during the trip.” The study participants were just walking in a forest instead. However, they were taken on a trip somewhere, which introduced other variables, so what about randomizing them to go on a city trip versus a forest trip? If there were some special forest effect, how long would it last? Do you have to walk in the forest every day? Before jumping into all that, let’s first see if it works in women, too. This study had the same kind of set-up, and the same kind of results: a significant boost in natural killer cell activity from walking in the woods. What’s more, this time, the participants were retested a week later, and their natural killer cell activity was still up. When they were retested a month after the trip their levels were back to baseline, as you can see at 2:45 in my video. So, walking in the woods once a week should do it, but the study involved a multi-day trip. Who can go to the forest all weekend, every weekend? How about just a day trip? The title gives it all away: “A Day Trip to a Forest Park Increases Human Natural Killer Activity and the Expression of Anti-Cancer Proteins in Male Subjects.” The same results and the same big jump measured the day after the trip compared to before and with the same staying power, as you can see at 3:08 in my video. And, natural killer cell activity was still boosted a week later. “This suggests that if people visit a suburban forest park once a week on a day trip, they may be able to maintain increased NK activity” and a boost in anticancer immune function. I’m still not convinced, though. How can you attribute the benefit to the forest itself, when all you have are before and after data? To make the case that nature had anything to do with it, you’d need a control group of study participants who took the same kind of trip but went somewhere else instead. And here we go. Again, the study title says it all: “Visiting a Forest, but Not a City, Increases Human Natural Killer Activity and Expression of Anti-Cancer Proteins.” By the end of the forest trip, the participants experienced a boost of 80 percent in NK activity after forest bathing, compared to only a 10 percent bump for the city walkers, as shown below and at 3:58 in my video. Both trips were matched for physical activity, alcohol, and sleep, too— other factors and behaviors that can affect immune function. So, we’ve got confirmation of boosted immunity, but only on the forest trip, “indicating that forest bathing does indeed enhance human NK activity.” Moreover, the researchers found that “the increased NK activity and numbers of NK cells induced by a forest bathing trip lasted more than 7 days, even 30 days, after the trip.” As you can see below and at 4:26 in my video, NK activity was still up a week later and even a bit up a month later. “This suggests that if people visit a forest once a month, they may be able to maintain increased NK activity. This may be important in health promotion and preventive medicine.” Now that we know that forest bathing induces a real effect, the next question is, Why? What is it about forests that give us the boost? (You can imagine Big Pharma wondering if it can be made into a pill.) We’ll find out next. The video I mentioned at the start is Are There Health Benefits of Spending Time in Nature?. Stay tuned for the follow-up post: Why Does Forest Bathing Boost Natural Killer Cell Function?. For other ways to improve immune function, check out related posts below. Key Takeaways Spending time in a forest, or even anticipating it, significantly lowers levels of cortisol (a stress hormone), more so than being in an urban area. Forest exposure is associated with a notable increase (around 50 percent) in NK cell activity, which plays a role in fighting off cancer. After a single forest trip, NK cell activity remains elevated for up to a week, and, in some cases, positive effects last up to a month. A day trip to the forest can be enough to maintain elevated NK cell activity if done weekly or monthly. Studies comparing forest versus city exposure confirm that forest environments uniquely boost immune function, independent of other factors like exercise and sleep. To read the original article click here.

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Pedaling Against Dementia: How Cycling Preserves Brain Health & Prevents Cognitive Decline

The AHA! Team — Mon, 28 Jul 2025 05:06:01 +0000

S.D. Wells via Natural News – Cycling preserves brain health and prevents cognitive decline – per study published in JAMA Network Open Medical doctors in America would have us all believe that as we age, we fall apart and there’s nothing we can do about it. They tell us it’s normal to die by 75 of a heart attack, diabetes, obesity, cancer or … wait for it… dementia. Our brains just “get old” and it’s “genetics” so all we can do is treat the symptoms and try to extend your life a few years with medications. Lie. Try exercising and eating clean. That would include cycling, which studies show prevents cognitive decline and dementia. Who knew? Time to hop on your bike this summer and have some fun, so you can have a healthy brain forever! Cycling Prevents Cognitive Decline: A JAMA Network Open study tracking nearly 500,000 people over 13 years found that cyclists had significantly lower dementia rates and greater brain volume in memory-related regions compared to non-cyclists. Superior Brain Protection: Cyclists showed a 19% lower risk of all-cause dementia, 22% reduced Alzheimer’s risk, and a 40% drop in young-onset dementia risk—outperforming walking, driving, or public transit. Dynamic Brain Stimulation: Cycling’s combination of navigation, balance, and decision-making creates a “cognitively enriched environment,” increasing gray matter in 10 brain regions and promoting neurogenesis. Genetics & E-Bike Caveats: Those without the APOE ?4 gene saw a 26% lower dementia risk, while e-bikes may weaken benefits by reducing physical/cognitive effort. Traditional cycling’s demands are key. Cycling preserves brain health and prevents cognitive decline – per study published in JAMA Network Open In an era where dementia cases are projected to triple by 2050, scientists have uncovered a surprisingly simple and cost-effective way to protect the brain: cycling. A groundbreaking study published in JAMA Network Open tracked nearly half a million individuals over 13 years and found that cyclists had significantly lower rates of dementia and maintained greater brain volume in memory-related regions compared to those who walked, drove, or took public transit. The findings suggest that cycling doesn’t just boost physical health—it actively shields the brain from degeneration. The study compared how different modes of transportation affected dementia risk, with striking results. Cyclists showed a 19% lower risk of all-cause dementia compared to car or public transit users. For Alzheimer’s disease specifically, the protection jumped to 22%, while the risk of young-onset dementia plummeted by 40%. What set cycling apart was its impact on the hippocampus, the brain region critical for memory and learning. Cyclists retained more gray matter in this area, suggesting the activity doesn’t just slow cognitive decline—it may actively fortify brain structure. Walking, by contrast, showed minimal benefits, while driving or bus riding fell somewhere in between. The secret lies in the cognitive demands of cycling. Unlike passive transportation, cycling requires real-time navigation, hazard assessment, balance, and decision-making—all while elevating heart rate. This combination creates a “cognitively enriched environment” that stimulates neurogenesis (the growth of new brain cells). The study linked cycling to increased gray matter in 10 different brain regions, offering broad protection against decline. In contrast, repetitive activities like walking on a treadmill or driving the same route daily place the brain on autopilot, missing the dynamic challenges that spur growth. The study revealed that cycling’s protective effects vary by genetics. Participants without the APOE ?4 gene (a known dementia risk factor) saw a 26% reduction in dementia risk, while those with the gene still benefited, albeit at a lower rate (12%). This suggests cycling can help even those predisposed to cognitive decline. However, the rise of electric bikes raises concerns. While convenient, e-bikes reduce the physical and cognitive effort required—potentially diluting cycling’s brain-boosting effects. Traditional cycling’s demands—balance, route planning, and sustained exertion—appear critical to its neurological benefits. For many, cycling infrastructure remains a barrier, but small changes can yield big rewards: Replace short car trips (pharmacy runs, coffee stops) with bike rides. Use bike-sharing programs or join local cycling groups for safer routes. Prioritize safety with helmets, lights, and reflective gear, starting on low-traffic streets. As dementia looms as a global health crisis, this study underscores that one of the most effective prevention tools may be sitting in garages worldwide. Cycling merges physical exercise, mental stimulation, and environmental benefits—all without costly medications or side effects. The evidence is clear: those who cycle regularly aren’t just protecting their hearts and muscles—they’re safeguarding their minds. With dementia rates rising, the choice to pedal today could mean remembering more tomorrow. Tune your internet dial to NaturalMedicine.news for more tips on how to use natural remedies for preventative medicine and for healing, instead of succumbing to Big Pharma products that cause, spread, and exacerbate disease and disorder, including dementia. Sources for this article include: NaturalNews.com Naturalhealth365.com To read the original article, click here

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Regular Exercise May Help Prevent Fatty Liver Disease Through Bile Acid Metabolism

The AHA! Team — Wed, 23 Jul 2025 05:30:05 +0000

American Physiological Society (APS) via Newswise – Aerobic exercise and a high capacity for exercise may protect against metabolic dysfunction-associated steatotic liver disease (MASLD), also known as fatty liver disease, by increasing the conversion of cholesterol into bile acids, according to a new study published in Function. The paper has been selected as an APSselect article for July by the American Physiological Society (APS). MASLD is a chronic condition in which excessive fat is stored in the liver. It is tied to high cholesterol, Type 2 diabetes, obesity and insulin resistance. It can also lead to liver disease and increases the risk of heart disease. While exercise is known to prevent and treat fatty liver, researchers don’t yet understand exactly how this happens. This new study offers insights: Researchers propose that exercise prevents or reduces fatty liver, in part, by improving bile acid metabolism. The most prominent way cholesterol is removed from the body is by its conversion to bile acids, which aid the digestion of fat and trigger signals that improve how the body uses sugar and fat. By stimulating bile acid metabolism, exercise increases the disposal of cholesterol and activates signals that improve how the body processes food. In the study, rats bred to have genetically high- or low-exercise capacity were provided a high-fat diet, which normally causes fatty liver. This design was chosen because exercise capacity has been independently linked to lower risk for fatty liver disease in people. In addition, genetically identical mice were fed a high-fat diet, and half were allowed access to voluntary running wheels to simulate daily exercise in humans. A separate group of mice that lacked the ability to make bile acids were studied to test whether bile acid metabolism is necessary for the protective effects of exercise. Key findings included: High-exercise capacity rats had higher liver bile acid production, more bile acids in their feces, and lower blood levels of bile acids compared to the low-exercise capacity group. Daily exercise also increased bile acid synthesis, fecal bile acid loss and protected against fatty liver in the genetically identical mice. This demonstrates that daily exercise provides the same benefit as high exercise capacity due to genetic differences. Mice with an impaired ability to produce bile acids experienced no benefit of exercise in preventing fatty liver. Aerobic exercise increased bile acid production, and this process was required to prevent fatty liver. “Importantly, our results identify bile acid synthesis as a key mediator between aerobic capacity, exercise and hepatic energy metabolism that may also be linked to whole-body metabolism and long-term risk for Type 2 diabetes and MASLD,” the researchers wrote. “[B]ile acid synthesis plays a critical role in aerobic capacity and exercise ability in combating MASLD.” Read the full article, “Aerobic Capacity and Exercise Mediate Protection Against Hepatic Steatosis via Enhanced Bile Acid Metabolism.” It is highlighted as one of this month’s “best of the best” as part of the American Physiological Society’s APSselect program. Read this month’s selected research articles.   To read the original article click here.

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