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

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

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

For most people, consuming some caffeine is harmless — but too much can be dangerous. Recent news coverage has raised questions about the amount of caffeine in some popular drinks and what consumers ...

Could coffee help to counteract some of the effects of alcohol on the brain, and potentially limit the risk of addiction? That's what's suggested by a new study of how caffeine interacts with the ...

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

Were you tossing and turning last night and cursing yourself for the iced caramel macchiato you drank in the late afternoon? Do you worry about the amount of caffeine in a Mountain Dew? Caffeine is ...

It could be your best shot at a productive day. Coffee offers a bevy of health perks, from boosting brain function and ...

Excessive caffeine consumption from energy drinks can raise the risk of stroke, heart rhythm disorders and dehydration, ...

By Dr. Sanchari Sinha Dutta, Ph.D. A randomized trial suggests that avoiding coffee after cardioversion may not help, and that modest caffeine intake may actually be associated with fewer atrial ...

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