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

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 ...

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 ...

For many Americans, a morning routine is not complete without a cup of joe. The National Coffee Association reports the average American drinks just over three cups daily. And some people opt to get ...

Want that long-lasting buzz from your morning coffee? Skip that second cup and try this surprising breakfast addition instead. Eating grapefruit with your java could potentially extend the effects of ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. PORTLAND, Ore. (KOIN) – A new study ...

Paraxanthine is the main metabolite of caffeine. Studies suggest it can boost alertness and focus, but the research base is ...

A cup of coffee or tea in the morning or an afternoon caffeine pick-me-up is usually fine for most adults. But parents might want to take a closer look at caffeine and other ingredients in the drinks ...

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