Add Yahoo as a preferred source to see more of our stories on Google. If you regularly drink coffee, tea, energy drinks or soda, you may experience side effects or withdrawal symptoms when slashing ...

Plenty of people joke about being addicted (or not being addicted) to caffeine. But it turns out that if you do decide to cut back on coffee or simply consume less caffeine than normal for a day or ...

Attention all coffee lovers! Feel like you can't even get out of bed without a cup of coffee or other caffeinated beverage? The American Psychiatric Association's Diagnostic and Statistical Manual of ...

Quitting caffeine suddenly can lead to caffeine withdrawal. Symptoms of caffeine withdrawal include headache, sleepiness, and feeling slow or sluggish physically, mentally, or both. Cutting back ...

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 ...

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 ...

Should a slip in the daily routine prevent you from quaffing your "cup of ambition," you probably don't need a caffeine researcher to tell you what will happen next—you will start to feel sick. In a ...

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 ...