Medically reviewed by Elizabeth Barnes, RDN Key Takeaways Drinking coffee can make you feel more alert and buzzed, but ...

Around 80% of the United States population consumes caffeine regularly, according to data from the U.S. Food & Drug Administration. Caffeine is found in coffee, tea, energy drinks, and some headache ...

For some, the day doesn’t begin until the first cup of coffee. But for others, that ritual—famous for bringing focus and energy—can cause a racing heart, jittery hands, and a vague sense of dread that ...

Share on Pinterest Caffeine in coffee and tea may help reduce body fat and decrease the risk of developing type 2 diabetes. Westend61/Getty Images New research suggests coffee and green and black tea ...

Your body absorbs caffeine within about 45 minutes, but it takes much longer to clear it entirely. Caffeine has a half-life of around five hours, meaning half the amount is still in your system five ...

Lean into your health goals and personal preferences when deciding between green tea and black coffee for your morning wake-up routine.

Some people claim that taking magnesium with coffee can offset caffeine jitters, but experts say there's no evidence to support this. Here's what mixing the two can actually do to your body.

A cup of coffee or tea in the morning or an afternoon caffeine pick-me-up is usually fine for most adults. But parents might want to take a closer look at caffeine and other ingredients in the drinks ...

Taurine is an amino acid that's made naturally by the body and is also consumed via meat and fish, according to WebMD. Some ...

Many people rely on coffee to stay alert and productive throughout the day, but drinking it too often can have mixed effects ...