We already know that the stimulating powers of caffeine make it an unsuitable choice for a late-night drink – at least if you want to get any shut-eye. But a new study adds a whole extra level of ...

Regular high caffeine consumption affects dopamine function in patients with Parkinson's disease, shows a new international study. Caffeine consumption before undergoing diagnostic brain dopamine ...

Caffeine is not only found in coffee, but also in tea, chocolate, energy drinks and many soft drinks, making it one of the most widely consumed psychoactive substances in the world. In a study ...

Regular high caffeine consumption affects dopamine function in patients with Parkinson’s disease, shows a new international study led by the University of Turku and Turku University Hospital in ...

MONTREAL — That cup of coffee you had during dinner with friends didn’t just keep you tossing and turning — it fundamentally altered how your brain operated during whatever sleep you managed to get.

A recent study of sleep lab volunteers reveals that caffeine impairs essential brain functions at night. Here’s what happens. Stacey Leasca is an award-winning journalist with nearly two decades of ...

Coffee's ability to boost alertness is commonly attributed to caffeine, but new research suggests there may be other underlying mechanisms that explain this effect. "There is a widespread anticipation ...

When you’re dragging yourself through the day, coffee can offer a reset. It can jolt your brain into action, sharpening your ...

Explore the effects of caffeine on brain function and alertness.

Caffeine is the world’s most commonly abused brain stimulant. Daily caffeine consumption by adolescents (ages 9 to 17 yrs) has been rapidly increasing most often in the form of soda, energy drinks and ...