Plus, how to find your caffeine sweet spot.

A growing body of laboratory research suggests that caffeine, the most consumed psychostimulant in the world, may reduce symptoms of anxiety and depression by suppressing inflammatory signaling inside ...

Your morning cup of java can wake your body up; can caffeine do the same thing for your face? Here’s what dermatologists say.

NBC News medical contributor Dr. Natalie Azar and TODAY health and nutrition expert Joy Bauer stop by Studio 1A to break down what you need to know about caffeine, including the benefits, daily ...

A study published this month in the Journal of the American Medical Association reveals that your daily caffeine fix might be ...

Learn how caffeine affects brain chemicals and health, sleep, and mood. Understand safe daily limits, hidden sources, and signs you’re getting too much.

Energy drinks often include other ingredients, such as B vitamins and plant extracts, but do those additives provide any health benefits?

Caffeine is the most consumed psychoactive compound in the world. Even if you don’t drink coffee or tea, you probably still regularly consume caffeine since it’s found in everything from fizzy drinks ...

LOS ANGELES (KABC) -- Caffeine is the most commonly used drug in the world. More than 90% of adult Americans consume caffeine regularly. But there are both benefits and risks when it comes to using ...

Black tea is a tried and true staple of tea blends. Check any office building or hotel room and you’ll likely find the classic Earl Grey, English breakfast and more. But just because they’re the most ...

Some claim it gives you energy and focus—without the jitters and crash.