Quitting caffeine suddenly can lead to caffeine withdrawal. Symptoms of caffeine withdrawal include headache, sleepiness, and feeling slow or sluggish physically, mentally, or both. Cutting back ...

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, ...

For many of us, caffeine is more than just a morning pick-me-up, it's a lifestyle. Whether it’s that frothy latte, iced cold brew, or trusty cup of black tea, caffeine often feels like the fuel that ...

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 ...

Should a slip in the daily routine prevent you from quaffing your "cup of ambition," you probably don't need a caffeine researcher to tell you what will happen next—you will start to feel sick. In a ...

Would you give up soda? Well, a group of Diet Coke- and Coca-Cola-obsessed USA TODAY journalists decided to try. I have been drinking Coca-Cola for as long as I can remember. I've tried to quit ...

Many people say drinking regular coffee makes them feel wired, anxious, or ultra-jittery. But for those of us who love the ...

For years, I told myself I just liked coffee, until I stopped drinking it for 10 days and realized how much control it ...

Within 15 to 45 minutes of drinking a cup of coffee, caffeine travels through the bloodstream and reaches the brain. There, ...