In addition, teenagers require between nine to 10 hours of sleep a night for optimal health.

Learn more about how to incorporate some simple things into your diet for optimal health and fertility.

Find out what your skin needs for optimal health.

Being able to run 26.2 miles means you're in optimal health, right?

There's good scientific evidence that a positive attitude is necessary for optimal physical health.

A balance of these doshas is thought to be required for optimal health.

In some cases, you may need to take a daily multivitamin for optimal health.

For optimal health, you should not exceed these limits regularly.

Learn how to eat right for optimal health and a long life.

Researchers believe we need at least twice that amount for optimal health and weight loss.