Caffeine withdrawal can bring headaches, fatigue

June 2, 2013 5:32:38 PM PDT
For those who run on coffee, missing a cup when you really need a jolt can be a real headache.

Researchers are now warning that crashing on caffeine is a mental disorder.

And there's a medical term for it.

They call "caffeine withdrawal" a real condition that brings fatigue, headache and difficulty focusing.

Doctors say caffeine, which is a drug, is safe for adults who consume up to about 400 milligrams a day.

That's about four cups of coffee.