Too much caffeine can cause unwanted side effects. High intake or sudden withdrawal may lead to headaches, anxiety, irritability, or trouble sleeping, especially in sensitive individuals. Over 400 mg ...

Millions of people in the US regularly consume caffeine in some form or another, but most of them are likely unaware of its ...

We've all been there. With a busy morning ahead, you have an extra cup of coffee to help you power through, not realizing that it's one too many. Now instead of being able to focus, you're irritable ...

Coffee can temporarily increase alertness, but too much caffeine may cause anxiety, sleep problems, or an energy dip later in ...

A flat white coffee, its milk froth poured into the shape of a plant's leaves. Sean Gallup Getty Images High caffeine intake is a real possibility for some as lattes, energy drinks and sodas multiply, ...

From a mood boost to potential health perks and problems, caffeine packs a punch. So, do you think you're a caffeine connoisseur? Chances are you've already had some caffeine today. Experts estimate ...

Coffee expresso on the terrace of a sandwich restaurant in the city of Rome, in the Lazio region of Italy. MARTIN BERTRAND Hans Lucas/AFP via Getty Images Lattes, energy drinks, sodas, pre-workout ...

ORLANDO, Fla. (Ivanhoe Newswire) - Chances are you’ve already had some caffeine today! Experts estimate that around 90 percent of people in the U.S. have at least some caffeine every day. In small ...