Caffeine is a common feature of many sodas, coffee, and food products. It’s a drug that is made naturally in the leaves and seeds of many plants and gives an energy boost when consumed. But how long ...

If you’re like most adults, you probably enjoy a cup of coffee or tea now and again. These drinks are natural sources of caffeine, the most commonly used stimulant in the world (1). Although commonly ...

Caffeine is a stimulant found naturally in beverages like coffee and tea. It’s also added to others, such as energy drinks and soda. Caffeine increases chemicals in your brain that improve mood, ...

You may reach for caffeine pills to ward off daytime sleepiness, keep you going at work, or help you stay awake as you cram for tests. But do they really work? Are they safe? Here’s what you should ...

Caffeine can boost your brain or break your rhythm — the difference lies in timing. Caffeine is one of the most widely consumed psychoactive substances globally, with approximately 85% of the U.S.

Adam Taylor does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Kristie Reed, PharmD, oversees emergency, general medical, surgical, psychiatric care, and oncology medication as the pharmacy director of a community hospital. Dr. Reed specializes in IV medications.

You might have reached a point where you’re ready to quit caffeine or, at the very least, cut back on the amount of caffeine you drink. The degree to which you feel better if you quit caffeine depends ...