Suddenly stopping caffeine can cause the brain to go into withdrawal. This happens because caffeine temporarily block receptors, and then when the caffeine is stopped, the brain releases too much of ...

You may experience withdrawal symptoms if you suddenly stop using caffeine. Caffeine withdrawal may cause headaches, irritability, low energy, and mood changes. It's important to understand how your ...

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 ...

Caffeine is the most widely consumed drug in the world, with coffee representing a major source of intake. In my earlier book, Wonder Drugs, I did not include caffeine. Back then, in the 1980s, ...

If you like to start your day with a warm cup of coffee or green tea for an energy boost, you're not alone. The National Coffee Association estimates that 66% of US adults drink coffee daily. Rest ...

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 ...

Hi, I'm Jordan, and I need a daily caffeine fix. (Hi, Jordan!) Initially, I was drawn to the fun of snatching up seasonal lattes. (That's how they get ya.) Soon after, I appreciated coffee for its ...

Dr. Dylan Wyatt, an emergency medicine physician at St. Luke’s, weighs in on caffeine conversation. Is caffeine really that bad for you? Dr. Dylan: Probably not. Research studies haven’t shown any ...

Person holding a full glass of coffee on a background of multiple empty finished cups. From espresso to energy drinks to supplements, caffeine comes in many forms, Rula notes. And if you're like most ...