Gout

Allergy tests

What happens in an allergy test? Watch this video and find out.

Twin to twin Transfusion Syndrome (TTTS)

Twin-to-twin transfusion syndrome (TTTS) is a rare condition that occurs only in identical twins while they are in the womb. This animation explains the syndrome and how it is corrected.

• Pregnancy

An asthma attack

In an asthma attack, inflamed and swollen airways make breathing difficult.

Knee extension with weight machine

The knee extension exercise targets the front of the thigh. See how it's done.

Ibuprofen: Important Warnings and Precautions

An overview of how to recognize common and more serious side effects with ibuprofen

• Ibuprofen