Botox is Not Just for Wrinkles: Therapeutic Uses of Botox

Corneal injury

This animation shows corneal infections resulting from corneal injury.

• Vision

Suncreens Defined: UVA, UVB, and SPF

A brief overview of sunscreens: ingredients, effectiveness, and UVA, UVB, and SPF defined.

Lying hamstring curl with weight machine

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

Baby

A baby's soft spots (fontanels) close when the skull bones fuse together. See how.

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