Biceps curl with weight machine

Carpal tunnel syndrome - results of surgery

Carpal tunnel surgery has immediate and delayed results, a Mayo Clinic surgeon explains.

Heart and circulatory system

Watch this video to see how a healthy heart works.

How to measure blood pressure using an automatic monitor

Watch this video to learn how to measure blood pressure using an automatic monitor.

Diabetes

Beneath your liver and behind your stomach, you have a fish-shaped gland called your pancreas. The head of the pancreas, on the right side, is connected to the small intestine, where most digestion takes place.

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