For many people, caffeine is a nonnegotiable part of their morning routine, but many push that habit into the afternoon, too.

Caffeine is the most common, normalized stimulant in the world, with many people consuming caffeine daily. According to Ron Cotterel, M.D., M.S., a family medicine and integrative family physician, ...

Drinking too much coffee can overstimulate your nervous system, leading to jitters, anxiety, digestive upset, a racing heart, ...

If you quit caffeine suddenly, your body may react with headaches, fatigue, and mood swings you never expected. Dietitian ...

Caffeine can linger in your system for 10 or more hours, which can impact sleep. Double-shot lattes and cold brews have ...

Brigette Muller wasn’t a big fan of caffeine for most of her life. Just a few sips just made her jittery and never seemed to have any upsides. But, during the COVID-19 pandemic, Muller started ...