Your support goes further this holiday season. When you buy an annual membership or give a one-time contribution, we’ll give a membership to someone who can’t afford access. It’s a simple way for you ...

Using tear gas is a common tactic authorities use to control crowds at protests, and it can have lasting affects on your health. Before you head out to a protest, learn what to do if you encounter it.

Tears seem simple, but the tiny glands that produce them are among the least understood organs in the human body. By growing ...

Across the United States, as marches over police brutality and the murder of George Floyd have grown in size, protesters have encountered volleys of tear gas. It’s clear that all protests—peaceful and ...

Having a blocked tear duct means your tears can’t drain normally out of that eye. It is often harmless in babies but can be a sign of a problem like infection in adults. The condition is common in ...

The MCL (medial collateral ligament) is an 8-10 centimeter band of tissue that runs along the inner edge of your knee. It helps keep your knee stable and working properly when you move. The medial ...

An estimated 5-15% of people have problems with dry eyes, with symptoms including eye redness, stinging, or burning sensation, and eye fatigue. Dry eye disease (DED) occurs when the eyes' tear glands ...

You need tears for a lot more than crying. They flow across the surface of your eyes to clean and moisten them, then they leave your eyes through a system of tiny drainage tubes that run along your ...

When hip or shoulder pain disrupts your life, the cause could be a labral tear. But what does that mean? Orthopedic surgeon Stephen Aoki, MD, breaks down what a labral tear is, how this injury happens ...

A retinal tear is a small split or hole in the lining of the back of the eye. The condition is not painful and may not damage a person’s eyesight. However, a torn retina can progress to a retinal ...

The frenulum is a tiny piece of skin at the base of the tip of the penis. It’s very thin and can be easily injured. Though painful, this injury can usually be treated at home without lasting ...

A hidden cellular cleanup system may hold the key to healthier tear glands—and new hope for treating dry eye disease.