Taking oral caffeine supplements may significantly reduce fatigue and improve quality of life and mood in people with MS, trial results show.

Find out more about how coffee — and the caffeine it contains — may impact this genetic heart condition that causes the heart to pump less effectively.

Few substances have woven themselves so seamlessly into the fabric of daily life as caffeine. Found in coffee, tea, chocolate and countless performance-enhancing supplements, this naturally occurring ...

For most healthy adults, the sweet spot is 3 to 4 cups (8-ounce servings) of filtered, low-additive coffee per day. By ...

Life-saving medical treatments often come with heavy physiological costs that extend beyond the targeted organ or disease.

Caffeine can boost your brain or break your rhythm — the difference lies in timing. Caffeine is one of the most widely consumed psychoactive substances globally, with approximately 85% of the U.S.

What happens in the brain when caffeine is stopped suddenly, which symptoms appear early on, who should reduce intake, and ...