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. Mercey Livingston CNET Contributor Mercey Livingston is ...

Tear gas used by security forces to disperse protesters in Tehran drifted unintentionally towards a hospital, with authorities saying it was not deliberately fired at the facility.

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 collateral ligament (MCL) helps your knee stay stable, but ...

A rotator cuff tear is a partial or complete severing of the rotator cuff tendons in the shoulder, usually due to injury. A strain is different, as it involves an overstretch of the tendons. The rotator cuff consists of four muscles that help keep shoulder ...

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 less so—might be met with chemical weapons.

A gluteus tear occurs when one of the tendons that holds your gluteal muscles and bones together partially or completely tears. Your gluteal muscles start at your buttocks and wrap around to the side of your hip. You have three gluteal muscles, which are ...

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 detachment, which can lead to permanent loss of vision.

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 nose. Sometimes these tubes can get narrowed or blocked ...

Fire officials say there is no threat to the public after a canister of a substance similar to tear gas burst at a Charleston car dealership.