Chest press with weight machine

Cataract

This animation depicts how a cataract is seen in the eye.

• Vision

Upper body stretches for the workplace

Upper body stretches can help prevent stiffness. Try these stretches at work.

Retina

This animation shows the process in which light is transformed by the retina as electrical impulses that travel to the brain through the optic nerve.

• Vision

Xolair: Uses, How It Works, and Common Side Effects

Xolair is used to treat types of allergic asthma, nasal polyps, chronic hives, and to reduce the risk of severe food-related allergic reactions. It should not be used for asthma attacks or the emergency treatment of allergic reactions.

• Xolair

Bent-over row with resistance tubing

The bent-over row with resistance tubing targets the back of the shoulder. See how it's done.