NBCUniversal

Engineering can help wheelchair athletes maximize their performances.

New treadmill technology helps rehabilitate runners from injuries.

Usain Bolt's stride, strength, and muscle coordination make him a biomechanical marvel.

U.S. weightlifter Sarah Robles relies on an athletic mix of strength, speed and timing to help create explosive power.

Your skin does a lot of work to protect you. Are you doing enough to protect it?

Learn how much sugar and salt you can eat safely and what happens when you eat too much.

Eating a healthy diet is possibly the single most important thing you can do for your health.

We've probably all heard that exercise is good for us, but do you know why?

Learn how to stay clean and practice good hygiene.

Drinking enough water is essential for your health.