Fact checked by Nick Blackmer Caffeine stays in your system for up to 10 hours, with peak levels between 15 minutes and two ...

Some foods can give you an instant caffeine boost, all without the dreaded crash afterward.

Too much coffee can be a latte for the heart to handle, with a new study linking over 400 milligrams of caffeine a day — roughly a venti-size coffee at Starbucks — to an increased risk of ...

Taking oral caffeine supplements may significantly reduce fatigue and improve quality of life and mood in people with MS, trial results show.

Share on Pinterest Researchers say consuming more than 400 milligrams of caffeine per day could raise the risk of cardiovascular disease. Verelly/Getty Images Researchers report that consuming more ...

Enjoying decaf coffee could be good for your health—it could help protect against type 2 diabetes, liver disease, and heart ...

Experts discourage regular consumption of energy drinks. High caffeine content paired with the supplemental ingredients in ...

Tea is unlikely to dehydrate you when consumed in moderation. However, drinking more than 8 cups at once can have a ...

Caffeine could act as an on-off switch for gene and cell therapies, giving doctors more precise control over powerful ...

The consumption of caffeine prior to or during golf and athletic training has been the subject of great debate and confusion. Some experts seem to say it only hinders performance, while others say the ...