That jittery feeling is a sign to change course, not panic. Drinking too much coffee can overstimulate your nervous system, leading to jitters, anxiety, digestive upset, a racing heart, and sleep ...

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

A woman died at only 32 years old after consuming too much caffeine. According to multiple local outlets like 9News and News.com.au, an inquest has heard that Christina Lackmann, 32, died alone in her ...

A staggering 94% of Americans use caffeine, 64% of whom do so on a daily basis. It’s the energy enhancer people start their ...

A Washington state man celebrated his birthday this year by treating himself to the most expensive drink you can custom-order at Starbucks. Let's hope he didn't chug that toxic — and potentially ...