Caffeine

Although individual ingredients in preworkout supplements may have some modest benefits for athletic performance, proprietary blends have less scientific backing.

It's OK for pregnant moms to sip their morning mug.

People who drink moderate amounts of coffee daily may live longer than people who don't drink coffee, a new study finds.

Your energy level isn't the only thing that gets a boost after downing an energy drink.

Perk up! Here's more evidence that coffee is safe for your heart.

Teens who drink energy drinks a lot are more likely to get head injuries than those who don't consume the highly caffeinated beverages, a new study from Canada suggests.

Drinking a cup of coffee at night may be bad for sleep in more ways than one: Caffeine not only keeps you alert but also affects the body's internal clock.

Caffeine is in coffee, tea and other products that we consume every day, so why is the powdered form dangerous?

An infographic that breaks down what happens to in your body after you drinking just one soda has gone viral, but health experts say some information in the graphic is exaggerated.

Energy drinks might prime you for heart problems, a new study finds.