Do you know how much caffeine is in your favorite coffee? It depends whether it's regular or espresso, but also on the size ...

Mushroom coffees from Ryze, Four Sigmatic, Everyday Dose and Atlas are skyrocketing in popularity — but are they safe to ...

Coffee and the caffeine in it can interact with some drugs. Learn more about which drugs you should not take with coffee.

Normally, cortisol levels are at their highest in the morning when we wake up, but drinking coffee on an empty stomach can ...

David Benavides, a board-certified sleep medicine physician, told Newsweek when you should cut off coffee consumption and why ...

Can coffee make you more anxious than other caffeinated drinks like matcha and soda? Doctors explain the phenomenon, and what ...

Caffeine is almost ubiquitous in everyday life. It is found in the typical morning cup of coffee, in black tea, in cola, in ...

Research reveals how your daily coffee could be amplifying anxiety symptoms, with genetic factors determining who's most at ...

This isn’t just anecdotal. Science backs it up. Researchers have found that participants who took coffee naps performed significantly better on driving tests than those who only drank coffee or napped ...

Wondering if coffee or energy drinks are better for you? Discover their pros, cons, and the healthiest way to get your ...

Americans don’t just drink coffee — they exist on it. The United States is the world’s largest coffee market, valued at over ...

Green tea contains L-theanine, an amino acid that has a calming effect and can increase concentration at the same time. In ...