Learn how caffeine affects brain chemicals and health, sleep, and mood. Understand safe daily limits, hidden sources, and signs you’re getting too much.

Caffeine is the most common, normalized stimulant in the world, with many people consuming caffeine daily. According to Ron Cotterel, M.D., M.S., a family medicine and integrative family physician, ...

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 ...

What caffeine does and doesn’t do for your health explained - A new study showed drinking two to three cups of coffee a day, or one to two cups of tea, was associated with a lower risk of dementia - r ...

I’m not sure if I’m writing this column because I want to scare myself into stopping, or if I’m writing it because I want to scare you into never starting. Either way, here’s why your current or ...

By Vijay Kumar Malesu A controlled human study reveals that coffee’s complex chemical matrix may shape immune responses ...

As we once discovered right here at Golf Digest, too much caffeine, or not enough, can have serious impacts on your golf game. Anybody who has had that extra cup before the round knows all too well ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...

Caffeine addiction may be linked to our genes. April 6, 2011— -- The amount of caffeine we drink may not be grounded in habit or lack of sleep. New research suggests that our own DNA is the ...

What caffeine does and doesn’t do for your health explained - A new study showed drinking two to three cups of coffee a day, ...