At 50, NFL legend Tony Gonzalez isn’t just staying in shape, he’s figured out how to sustain the health of his mind, body, ...

What Is an Incubation Period? If you've been around someone who has the coronavirus that causes COVID-19, it's natural to wonder whether you'll get sick, too — and if so, how soon. The answer depends ...

Graves' disease causes your thyroid gland to release too many hormones, which can lead to this problem as well as double vision and loss of vision. It also may cause diarrhea, weight loss, and hand ...

Studies show tai chi, a gentle exercise often called “meditation in motion,” can help you cut down on falls if you’re older and having balance issues. A skilled teacher can show you the slow, precise ...

Medically Reviewed by Jabeen Begum, MD on April 24, 2026 ...

Insulin helps your cells make energy. Sometimes it stops working, and your blood sugar builds up. WebMD explains what that does to your body and what you can do about it.

Doctors, drugs, and deductibles. There are a lot of things to consider when choosing a healthcare plan, biggest of all being ...

Being overly thirsty and having blurred vision are two signs of diabetes. Burnout may raise your chances of type 2 diabetes. If you're showing these or other symptoms of diabetes -- and you're having ...

Not really. Doctors can test your pee to see if you’ve had enough iodine recently, but that doesn’t necessarily show if you get the right amount over time. These tests do, however, help scientists ...

It’s kind of like physical tiredness, except it’s your mind instead of your muscles. It tends to show up when you focus on a mentally tough task for a while. You might also feel this kind of brain ...

They have some key differences, though. MS is an autoimmune disease that causes your body to attack itself. ALS, also called Lou Gehrig’s disease, is a nervous system disorder that wears away nerve ...

Kidneys filter waste from your blood and ship it out in your pee. When your kidneys don’t work right, toxins can build up. One common tipoff is fatigue. You may feel spent, weak, or have trouble ...