Hearing and the Cochlea

Tai chi

See why tai chi is often described as meditation in motion and why it's used for stress relief.

Psoriasis

Animation of the skin layers and normal function of skin cells showing the immune response and what goes wrong in the skin cells causing psoriasis.

Prednisone: Overview of Uses

A review of prednisone and its use in inflammatory conditions.

• Prednisone
• Allergy
• Asthma
• Psoriasis

Laparoscopic adjustable gastric banding

In adjustable gastric banding, a band is placed around the upper part of the stomach. Tightening the band limits how much food the stomach can hold.

Arthroscopic knee surgery

Arthroscopic knee surgery — watch video of an arthroscopy procedure.