Take Today's Health Challenge, from Spartan Race Founder Joe De Sena
How to Find Products That Are Actually "Natural"
Today's Spartan Challenge: Drink Nothing But Water
Linebacker Luke Kuechly's Brutal Pre-Season Strength Workout
What Olympians Really Eat for Breakfast
How Fox News' Bret Baier Sheds Pounds (Even in an Election Year)
How to Sleep Better at a Hotel
Ranking the New Wave of Health Drinks, from Kombucha to Green Juice
6 Moves That Are More Effective Than Bicep Curls
Common Sexual Compatibility Myths, Debunked
The Science Behind How Dogs Make Us Happier, Healthier, and Fitter
Why Owning a Dog Adds Years to Your Life
The Workout That Got the 'Suicide Squad' In Shape (Together)
Why Thin People Get Diabetes
Don't Worry About the Brain-Eating Amoebas
How Soon After Sex Can You Orgasm Again?
What Sciatica Really Means (and How to Fix it)
Help Yourself: Tony Robbins' Four Tips for Mental Fitness
Quiz: Are You Sexually Compatible?
How to Sleep on a Plane