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Coffee does more than wake you up. Discover 15 surprising and weird effects coffee can have on your body, from brain function to digestion.

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

Many of us like to start the day with a strong cup of joe to keep us going through the morning, but it turns out that some people might find their sleep impacted that evening. This is due to the ...

Most cold brews have less caffeine than hot coffees. But caffeine content in a cold brew can vary depending on such factors as brand, bean-to-water ratio, and brewing time. Cold brew coffee is a type ...

Eye pressure refers to a pressure created by the fluid inside the eye. This pressure may go up if caffeine and alcohol are consumed in excess.