Caffeine in coffee, tea, chocolate, colas, and energy drinks can cause blood pressure to temporarily rise. Learn how much and ...

Caffeine offers some real health benefits—but not if you go overboard. Here’s how coffee, energy drinks, and other caffeine ...

Whether it’s a cup of tea or coffee, many of us struggle to get through the day without our caffeine fix. While it can be beneficial to boost energy levels, reduce fatigue and improve focus, for some ...

I’ll never know how much caffeine I consumed the night I practically drank my weight in Typhoo tea, but given the fact that I stayed awake for 24 hours, it was an awful lot. The tea was delicious, the ...

Have you ever grabbed a cup of coffee to fight off fatigue—only to feel even sleepier afterward? If you’ve asked yourself, “Why am I sleepy after coffee?” you’re not alone. Many people experience ...

Landolt’s study did show a potential drawback: because the pill’s shell around the caffeine broke down gradually during sleep ...

According to the American Medical Association, roughly 85% of Americans consume caffeine daily, yet most of us don’t think twice about what it’s really doing to our bodies. That post-lunch slump, the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Between Celsius, Prime, and Panera’s Charged Lemonade, talk of highly caffeinated drinks is everywhere, ...

Most cold medications contain stimulants, which, if taken alongside caffeine, can lead to heightened side effects. It’s recommended that you avoid caffeine if you’re taking any medications for a cold ...

Some research suggests moderate caffeine consumption has a positive impact on erectile health, but other studies have found no correlation. Consuming caffeine may offer benefits for other conditions ...

Several studies have investigated the interaction between creatine and caffeine, but the results have been mixed. Some research suggests caffeine may reduce creatine’s performance benefits, while ...