Mitral valve repair surgery

What happens during obstructive sleep apnea?

Sleep apnea -- Watch this video to see how snoring and obstructive sleep apnea occur.

• Sleep Disorders

Seated hamstring curl with weight machine

The seated hamstring curl with weight machine exercise targets the back of the thigh. See how it's done.

Modified pushup

The modified pushup is less challenging than a classic pushup. See how it's done.

Herniated nucleus pulposus (slipped disk)

This animation shows displacement of an inter vertebral disk (disk between the vertebrae).

• Back Pain

Tramadol: Precautions and Common Side Effects

Safety precautions, side effects and discontinuation recommendations for tramadol. Learn more about tramadol at: http://www.drugs.com/tramadol.html

• Tramadol
• Pain