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 ...

Cutting back on caffeine can cause withdrawal symptoms, especially if you are a regular drinker. (Getty Images) However, caffeine, particularly when it’s overused, can cause unwanted side effects like ...

Switch Strips released a comprehensive guide revealing that caffeine withdrawal insomnia extends far beyond the commonly ...

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 ...

Overly Caffeinated Student: Some of my peers hosted an impromptu intervention and divulged that my caffeine intake is concerning and bordering on an addiction. I suffer from withdrawal headaches if I ...

I’ll never know how much caffeine I consumed the night I practically drank my weight in Typhoo tea, but given the fact that I stayed awake for 24 hours, it was an awful lot. The tea was delicious, the ...

Recent research suggests that the consumption of caffeinated beverages is linked to a measurable increase in positive ...

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 ...

People who regularly consume caffeine are usually in a better mood after a cup of coffee or another caffeinated drink—an effect that is much more pronounced in the morning than later in the day. This ...