If you are way too dependent on your morning coffee, you might be addicted to caffeine. Here are some ways to deal with it- ...

From espresso to energy drinks to supplements, caffeine comes in many forms, Rula notes. And if you're like most people, you probably enjoy a cup of coffee each morning or a late-afternoon soda to ...

When you cut out caffeine, you'll miss out on the temporary spike in blood pressure people often get from caffeine. However, the exact impact of cutting out caffeine can depend on your caffeine ...

While it is perfectly safe to enjoy up to 400 milligrams of caffeine in a day, overconsumption can lead to some unpleasant ...

When we think of the topic of addiction, many images can come to one's mind. There is the picture of the hard drug user, emaciated and alone. Perhaps you might have envisioned an addict using a ...

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

According to the nutritionist, the best way to consume L-theanine is to blend green tea with apples and other ingredients ...

Editor's Note: While onsite at the 2013 Annual Meeting of the American Psychiatric Association, Medscape spoke with Ali Canton, MD, of the University of Oklahoma College of Medicine about the ...

Think about it: Every time you reach for a green tea or flat white, do you really need the energy, or is it more about the ritual? When you get up from your desk at 4 p.m. to brew a pot of dark roast, ...