Going cold-turkey may cause some daily coffee drinkers to experience a lingering headache that could last for two to three days.

Plus, when you'll start to notice them after your last fix.

Both doctors recommend a gradual reduction approach. For instance, reducing daily caffeine intake by 25 to 50 percent. For example, if one previously drank three cups of coffee, they should reduce it ...

As Ramadan approaches, coffee drinkers may face additional challenges. They suddenly have to cut back on caffeine while ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. However, caffeine, particularly when it’s overused, can cause unwanted side effects like “insomnia, digestive problems, increased ...

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 ...

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 ...

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 ...

Caffeine is a naturally occurring stimulant often found in coffee, tea, chocolate and various energy drinks and medications.

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 ...