Knee extension with weight machine

Roux-en-Y gastric bypass surgery

In this type of gastric bypass, the surgeon creates a small pouch at the top of the stomach, greatly limiting the amount of food the stomach can hold.

Biktarvy: Uses, How It Works, and Common Side Effects

Biktarvy is a complete HIV-1 treatment in a once-a-day single tablet that contains three antiviral medicines bictegravir, emtricitabine, and tenofovir.

• Biktarvy

Seated row with resistance tubing

The seated row with resistance tubing targets the muscles in the upper back. See how it's done.

Intracytoplasmic sperm injection

This animation shows the process of Intracytoplasmic sperm injection (ICSI), a procedure used to fertilize an egg cell outside of the body.

• Birth Control

Heart and circulatory system

Watch this video to see how a healthy heart works.