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Want to know what the science says about popular herbs used for health purposes? Find some answers in the palm of your hand by downloading the free HerbList app to your phone or tablet. Get clear info about over 50 herbs, such as aloe, turmeric, and chamomile.

The future of science depends on the young people of today. If you’re a teen who loves science, you can enter the Eye on the Future Teen Video Contest. NIH’s National Eye Institute created the contest so they could hear from the next generation of scientists. Videos can be created in three different categories. “Science in Your World” shows what science means to you and its role in your life. “…

Most of us go through each day without ever thinking about our feet. It’s only when something goes wrong that we tend to realize just how important our feet really are. “Our feet are usually covered with shoes and socks, and they’re easy to forget about, or we might take them for granted,” says Dr. David G. Armstrong, a foot doctor (podiatrist) and professor of surgery at the University of…, Pay Attention to Problems, The foot’s complexity means there’s a lot that can go wrong. “Foot problems can range from annoying to devastating,” says Dr. Crystal M. Holmes, who heads the podiatry program at Michigan Medicine. “You can have skin problems like athlete’s foot, which is caused by fungus. Or you can have warts, which is a viral infection. These generally are not serious. But certain other skin infections can…, Foot Health and Diabetes, People who have diabetes need to pay special attention to their feet. Diabetes affects about one in 10 Americans. Most people with diabetes—about 60% to 70%—develop nerve problems. These can range from mild to severe. Diabetic nerve damage, or diabetic neuropathy, can make you lose feeling in your feet, which can be dangerous. “A person with diabetic neuropathy may step on a nail and not realize…, If the Shoe Fits, No matter your age or health conditions, wearing well-fitting, supportive shoes can have a big effect on your health. But research suggests that many of us wear shoes that are the wrong size or ill-fitting. “Our foot tends to widen a bit as we get older, and it can also widen during pregnancy,” Wu says. “So if your foot size was measured at age 20, it probably won’t be the same years later.” Feet…

About 1 in 3 adults in the U.S. has high blood pressure, but many don’t realize it. High blood pressure is sometimes called a “silent killer,” because it usually has no warning signs, yet it can lead to life-threatening conditions like heart attack or stroke. The good news is that high blood pressure, or hypertension, can often be prevented or treated. Early diagnosis and simple, healthy changes…

Your eyes let you picture the world. But, for many people, that image is blurry. If the shape of your eye makes it hard to see clearly, glasses and contact lenses can help bring the world into focus. For some, surgery may also be an option. But it’s not for everyone. Researchers are looking for new ways to predict who will benefit from corrective eye surgeries. Your eyes work like a camera,…

COVID-19 vaccines have saved many lives. The original vaccines were released in late 2020. They targeted the initial strain of SARS-CoV-2, the virus that causes COVID-19. Since then, different versions of the virus have evolved. So scientists created an updated booster shot. It’s called a bivalent booster because it targets two versions of the virus: the original strain and a newer one called…

“Genome” is a fancy word for all your DNA. From potatoes to puppies, all living things have their own genomes. The more you know about the genome and how it works, the more you’ll understand your own health and make informed health decisions.

Getting enough vitamins and minerals is important for your health, and there’s a long list of essential ones. Vitamin D is one you may hear a lot about. It helps your body absorb calcium, a mineral your body needs to build strong bones. Your heart, muscles, and nerves also need vitamin D. Even your [qtip:immune system| The system that protects your body from invading viruses, bacteria, and other…, Where to Get It, You can get vitamin D from the sun and from your diet. Your body makes vitamin D when your skin is exposed to the sun, which gives off UVB light. But many people don’t go outside enough to get all the vitamin D they need this way. Other factors, such as clothing and sunscreen, can block how much vitamin D your skin makes when you’re in the sun. How much melanin you have also plays a role. Melanin…, Is More Better?, Although most people get enough vitamin D to avoid deficiencies, researchers have long wondered if adding extra vitamin D could be good for overall health. Many studies have linked higher levels of vitamin D in the blood with healthier outcomes. Manson and her team conducted a large clinical trial, called VITAL, to see whether vitamin D supplements could lower risk for some health problems. They…, Finding New Uses, Scientists continue to study how vitamin D can help people, since it plays a role in many of the body’s functions. Manson’s team is following up on their findings in VITAL that suggest taking vitamin D supplements may lower the risk for developing an [qtip:autoimmune disease| A condition in which the body’s disease defense system mistakenly attacks the body’s own cells and tissues.] or advanced…

The difference between a little fish and a human may seem enormous. But in some ways, fish and people are surprisingly similar. That’s why scientists around the world have been studying a striped fish called the zebrafish. These little fish—about an inch or two long when fully grown—have a lot to teach us about human health. Like us, fish have a spine, brain, heart, gut, ears, eyes, and other…

To repair burns and other skin injuries, surgeons can grow new patches of skin in the lab. But these patches are usually small, and their shapes are limited. Using such patches on complex structures like the hands or face requires lots of cutting and stitching. This can cause damage and scarring. Researchers are working to find ways to grow 3D skin in the shape of complex body parts. In a new…