To tell if you’re dehydrated, you can do the “pinch test.” Pinch a bit of skin on your arm between your thumb and forefinger. If you’re well hydrated, it should go back to its original position a ...

The active ingredient in peppermint is menthol. Some small studies show it can lessen the pain of migraine headaches. It may also reduce other symptoms like light sensitivity, nausea, and vomiting. A ...

What's going on down there? WebMD shows you pictures of genital herpes symptoms and treatments -- and how to avoid getting the virus in the first place.

This includes yoga, push-ups, pull-ups, weight training, and other activities that can help you add weight. They do burn calories, but that can make you hungrier so you eat more. Talk to your doctor ...

Some people with major depression have symptoms only once in their life. Others have them again and again. Once you get treatment, it's important to pay attention to your feelings. That will help you ...

A tan may look nice, but that golden color is due to an injury to the top layer of your skin. When you soak up the sun's ultraviolet (UV) rays, it speeds up the aging of your skin and raises your risk ...

Scientists are still figuring out exactly how well vitamin D can treat or even keep you from getting the virus. One study showed taking vitamin D drops in the winter helped lower the number of ...

Medically Reviewed by Shruthi N, MD on April 24, 2026 ...

Sciatic nerves go from your lower back into your legs. When something presses on them, like a slipped disk or a bone spur, you get sciatica. You might have a burning sensation, numbness, weakness, or ...

Propofol is a strong anesthetic that's used for surgery, some medical exams, and for sedation for people on ventilators -- never as a sleep aid. It's given by IV and should only be administered by a ...

This “good” cholesterol, called HDL, seems to go up in people who have three or more eggs a day. Of course, LDL, the “bad” type, goes up, too. But the individual pieces of each get bigger. That makes ...

It’s an especially important time to get enough iodine. Too little could affect your baby’s growth and brain development. That’s why pregnant women need about 50% more iodine than other adults. You’re ...