When it comes to caffeine consumption, you’re not alone if you depend on it to help you concentrate or be alert. Dreamstime/TNS You probably know that tea and coffee contain caffeine, but did you know ...

Medically reviewed by Kierra Brown, RD Decaf coffee still has small amounts of caffeine, despite its name.Chocolate, ...

Tea is one of the most popular beverages in the world, and it also contains caffeine. While the caffeine content in tea is generally lower than that in coffee, it can still provide a noticeable boost ...

Caffeine is the most widely consumed psychoactive substance in the world. Caffeine speeds up the central nervous system and can make users feel more alert. The Centre for Addiction and Mental Health ...

Ounce for ounce, you'll get more caffeine bang for your buck in an espresso. An eight-ounce cup of coffee has about 95 milligrams of caffeine—which means each ounce of your standard cup of joe ...

Of all the substances humans use to augment, alter, suppress, and avoid various aspects of our existence, caffeine is one of the most amazing. Is it disturbing to realize that you literally can’t ...

There's caffeine hiding in more places than you'd think. But despite all the negative attention, caffeine is still a popular element in plenty of products Americans consume on a regular basis. Case in ...

A cup of coffee can be the perfect pick-me-up, giving you a quick boost of energy on a slow afternoon. But how long does caffeine stay in your system and can it affect you even hours after consumption ...

Coffee is an obvious source of caffeine, but some other common ones might surprise you. You probably know that tea and coffee contain caffeine, but did you know it also can be found in other drinks, ...

You probably know that tea and coffee contain caffeine, but did you know it also can be found in other drinks, food and some medications? When it comes to caffeine consumption, you’re not alone if you ...