8 new weapons in the anti-mosquito arsenal

The AHA! Team — Thu, 18 Jul 2024 08:48:05 +0000

Abigail Klein Leichman via Israel21c – Cases of West Nile virus highlight the urgency of dealing with disease-carrying mosquito populations, which are only growing… Cases of West Nile virus in areas of Israel and other countries this summer highlight the urgent need for solutions against female mosquitoes, which are the ones that bite to get blood that helps them produce eggs. If a mosquito becomes infected with a virus from a person or animal it bites, the virus then multiplies in its body. Then the insect becomes a vector, transmitting viruses through saliva deposited when biting your skin. The American Mosquito Control Association estimates that more than 1 million people die each year from mosquito-borne diseases including West Nile, malaria, dengue, Zika, yellow fever and more. The US Centers for Disease Control and Prevention (CDC) predicts a rise of these diseases in many parts of North America due to the warming climate that allows mosquitoes to thrive. Andrea Ammon, director of the European Centre for Disease Prevention and Control, said, “Europe is already seeing how climate change is creating more favorable conditions for invasive mosquitoes to spread into previously unaffected areas and infect more people with diseases such as dengue.” Here’s an overview of ways in which Israeli scientists and entrepreneurs are working to solve this growing problem. In the lab A highly effective, yet natural, skin-coating repellent offering both mechanical and chemical protection is in advanced stages of development at Hebrew University. The formula contains indole, a fragrant extract from flowers, and cellulose nanocrystals (CNC), an abundant renewable plant substance. The project grew out of a research collaboration among PhD student Daniel Voignac from the Department of Applied Physics and Center for Nanoscience and Nanotechnology; Prof. Yossi Paltiel; Prof. Jonathan Bohbot, head of the university’s Neurobiology Of Insect Olfaction Lab; serial inventor/entrepreneur Prof. Oded Shoseyov and PhD student Evyatar Sar-Shalom.

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Witch Hazel Uses for Skin, Hair & More

The AHA! Team — Wed, 05 Jun 2024 08:41:04 +0000

Jillian Levy, CHHC via Dr. Axe – Today, we have hundreds of different beauty products available to us — acne washes, toners, scrubs, etc. — but what did people use thousands of years ago before commercial chemicals existed to help heal their skin? When it comes to natural skin care, one time-honored medicinal plant is witch hazel, which Native Americans relied on for fighting swelling, sores and infections. There may be no plant more beneficial to your skin, as research showcases the many advantages witch hazel provides. What is witch hazel good for? Thanks to its astringent properties, it’s one of the most effective natural acne treatments known to man — and it’s even been shown to help protect against skin cancer. Other benefits include naturally reducing blisters, insect bites, poison ivy, inflammation, hemorrhoids, toothaches and much more. So if you’re looking for cleaner, healthier skin with the help from a natural product, look no further than witch hazel. What Is Witch Hazel? The witch hazel plant (which has the species name Hamamelis virginiana) is a type of plant native to North America and a member of the Hamamelidaceae plant family. Sometimes also called winterbloom, the bark and leaves of the witch hazel plant are used to make a skin-healing astringent. Does witch hazel kill germs? Yes, this multi-purpose product has many uses, including killing bacteria that can live within skin’s pores. The most popular use is for skin care, since its strong antioxidant and astringent properties can keep acne, wrinkles and more at bay. It can also help stop cellular damage that can lead to skin cancer, while preventing signs of aging and speeding up healing. When it comes to the products that you apply directly to your skin, you always want to treat the surface of your body how you would the inside: Avoid as many chemicals and toxins as possible. Witch hazel offers benefits over other beauty products because it’s completely natural and free of environmental pollutants, irritating ingredients, fake fragrances and other contaminants. How Witch Hazel Works How can witch hazel do so much? High levels of healing active ingredients reduce inflammation, cellular damage and swelling, while also soothing wounds. The bark, twigs and leaves of the plant are used to extract active constituents called polyphenols and tannins. They’re then added to either alcohol or water to make a concentrated product called witch hazel water, Hamamelis water or distilled witch hazel extract. Tannins are responsible for making witch hazel extract a natural astringent, since they remove excess oil from skin. This is the reason why witch hazel is one of the most popular natural acne treatments worldwide and is used in dozens of over-the-counter treatment gels, washes and lotions. Studies also show that tannins from witch hazel can be used to make plant-based antivirals, such as to fight the flu and other illnesses. In addition to tannins, witch hazel is high in compounds called “gallate esters,” which include proanthocyanidins that have antiviral effects, hydrolyzable tannins (galloylated sugars) and methyl gallate. Witch hazel extract is considered to be polyphenolic and has been shown to help inhibit cell proliferation in cancerous human cells. Studies show that it is capable of stopping mutated cell cycles and inducing apoptosis (death of dangerous cells). Because witch hazel is a natural antioxidant and anti-inflammatory, it’s effective as a “free radical scavenger.” This means it helps protect against DNA damage and tumor growth. Oxidative stress and free radical damage build up over time from exposure to things like UV light, pollution, a poor diet, stress and so on. Plants like witch hazel that are high in polyphenols are the same kind used to create anti-aging nutritional supplements that slow down disease development by protecting cells. Uses Witch hazel has been used for centuries to naturally help treat and prevent: acne skin sores bruises redness and swelling ingrown hairs psoriasis or eczema oily skin excess sweating varicose veins cracked or blistered skin insect bites poison ivy irritated scalp sunburn and melanoma razor burn (such as in a DIY aftershave) mucous membrane inflammation hemorrhoids allergic reactions Recent studies even show that the tannins found in witch hazel may exert a protective action against colon cancer cells. The skin is our largest and most vulnerable organ, so it could use all the support it can get. Skin is our natural barrier to the outside world and provides us with protection against UV radiation, chemicals in our food supply, bacteria and other germs, and environmental pollutants. All of the “stress” that our bodies deal with every day, both internally and externally, show up on our skin in the form of aging, puffiness, infections, inflammation and sensitivities. That’s why we rely on eating and using natural antioxidants and anti-inflammatories to help curb inflamed and diseased cells. Herbal plant therapies for skin disorders have been used for thousands of years, and today many traditional herbs are being reintroduced, studied extensively and experiencing a resurgence in popularity since many chemical treatments don’t always work or have harsh side effects. Benefits 1. Reduces Acne What does witch hazel do for acne? As a natural home remedy for acne, applying witch hazel to acne-prone skin can help slow down bacteria growth and decrease inflammation, redness, oiliness and bleeding. Can you clean your face with witch hazel? Yes, since it’s a natural cleanser, it’s capable of reducing bacteria growth on the skin and speeds up the time needed to heal infections or scabs. Another benefit for sensitive skin is that it reduces the look of pores (although no product can actually shrink pores) and helps stop excess oil production, sweating, and development of blackheads or whiteheads, which can contribute to breakouts and tempt you to pick at your skin. You can skip irritating acne products and turn to witch hazel to lower the severity of blemishes forming under the skin and prevent blackheads caused by dried sebum buildup in pores. How long does witch hazel take to clear acne? It depends on how severe someone’s acne is. It may take effect in just several days or take several weeks. Does witch hazel get rid of acne scars? It can help, due to its anti inflammatory and antioxidant properties. Applying some can help stop swelling and redness if you already picked at your acne. It can also curb signs of past irritations and deal with skin infections that may result from picking. 2. Fights Signs of Aging and Damage from Sun Exposure What does witch hazel do to your face? Does witch hazel fade dark spots? Can it tighten skin? If you’re looking for a natural way to firm up your skin and slow down signs of aging like scars, redness, discoloration, dryness and puffiness around the eyes, then look no further than witch hazel. It tightens skin and is protective against skin cancer, melanoma and other damage caused by UV light because of its protective polyphenols and tannin antioxidants. These inhibit the proliferation of melanoma cells and help protect healthy skin cells into older age. Use it to keep your skin free from irritating chemical products that can alter oil production and increase dryness. Witch hazel has been shown to help protect collagen and skin elasticity just as well as many commercial beauty products. Its anti-inflammatory and antioxidant properties make it a great way to preserve skin’s elasticity, saving your complexion and helping you deal with the effects of environmental stress on your skin. And because using witch hazel for your pores helps them look smaller, this can make your skin appear more even. 3. Treats Insect Bites Many bug repellents, DIY bug sprays and commercial products used for treating insect bites contain witch hazel. Wondering how to get rid of mosquito bites? People turn to witch hazel to reduce the effects of bug bites, such as pain and swelling from stings, allergies and irritations. Certain studies have found that applying witch hazel cream to skin irritations can curb symptoms just as well as synthetic chemical creams, including dexpanthenol, which is often used to fight skin irritations in children. It can also be used to help speed up healing scabs or minor cuts because witch hazel extract contains isopropyl alcohol, which is another natural disinfecting ingredient that kills bacteria and helps prevent infections. 4. Cleanses Hair and Protect the Scalp To get rid of greasy hair, use witch hazel on your hair to help reduce oil buildup. This leaves your hair shinier, healthier and more volumized. It’s also great for removing hair odors, helping with an irritated scalp, or speeding up healing from any bites or acne at the base of the neck when you’re prone to sweating. One study conducted by the Center for Dermatology and Disease in Zurich, Switzerland, found that shampoo containing witch hazel extract helped soothe patients’ irritated scalps, redness, itching and inflammation. After testing the effects of witch hazel on 1,373 patients, a percentage of patients reported improvement in symptoms and better tolerance of other hair products. 5. Prevents Ingrown Hairs and Rashes After shaving, you can apply witch hazel to any part of the body to slow bleeding from nicks or cuts, prevent bacteria growth and infections within hair follicles, soothe razor burn, and prevent ingrown hairs from forming. Some people also like to use the toner along with other healing essential oils on skin after waxing to reduce pain, swelling and bleeding. 6. Stops Ear Infections from Developing Since witch hazel is an effective antibacterial, and “swimmer’s ear” or other ear infections are usually caused by bacterial infections, it’s a natural way to treat irritations within the ear canal. Witch hazel helps clear up bacteria overgrowth and infections within the ear; dry up oil, pus and excess sweat; break up wax; and even remove odor. To clean the outside of the ears, apply several drops to a swab and rub around the inside of the ears. 7. Soothes a Sore Throat Some people like sipping on witch hazel tea (not witch hazel water or a drink made with extract, which contains isopropyl alcohol) to soothe an irritated, infected or sore throat. The natural astringent properties make it beneficial for fighting illnesses that affect the throat, while its soothing properties lower pain and discomfort caused by coughs, strep throat, sore throat, sinus infections, tonsillitis or other throat problems. 8. Stops Pet Odor and Bug Bites Witch hazel can stop excess bacteria from forming on the surface of your pet’s skin, including in wounds or bites, which can lead to odor. It is non-irritating to pets, helps prevent them from getting bug bites by repelling mosquitoes and other insects, can slow down itching or bleeding, and helps cleanse their skin. 9. Treats Hemorrhoids Witch hazel also performs as a hemorrhoids home remedy. You can apply witch hazel water to the skin to help lower pain and inflammation caused by uncomfortable hemorrhoids. It’s useful for relieving itching, irritation, bleeding and burning from hemorrhoids as well. 10. Protects Your Mouth, Lips and Gums If you have blisters on your lips, inner cheeks or gums, turn to witch hazel to speed healing and get rid of pain and swelling. It’s safe to apply the extract to the inside of your mouth to slow down bleeding, blisters, sores, bad breath odors and infections of the gums, especially when combined with other healing oils like coconut oil or peppermint oil. Witch hazel also helps relieve pain from toothaches or teething in infants, prevent infection after oral surgery, and fight bleeding and inflammation from mouth sores. How to Use Look for witch hazel in pharmacies, health food stores, stores that sell beauty products or online. Extract derived from the witch hazel plant can be used topically (on the surface of the skin) or taken internally just like medicine. Depending on how you use witch hazel, it can help stop manage skin conditions like acne and skin redness or other types of issues like diarrhea, colds, mucus colitis, vomiting, coughing, the flu and more. The most...

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8 new weapons in the anti-mosquito arsenal

Witch Hazel Uses for Skin, Hair & More