Caffeine is found not only in coffee but also in tea, chocolate, energy drinks, and many soft drinks, making it one of the most widely consumed psychoactive substances in the world. In a ...

Getting through a serious amount of caffeine each day could put the brakes on the brain's ability to rewire itself, according to an analysis of two small but intriguing studies. Researchers from the ...

Nicotine and caffeine are central ... lead to changes in other brain circuits involved in: learning stress self-control These changes can cause many people who use tobacco to develop nicotine ...

But if you’re not using ... sets, caffeine deserves a spot in your gym bag and your game plan. Here's What it's Actually Doing Behind the Scenes Caffeine blocks adenosine, the brain chemical ...

From espresso to energy drinks to supplements, caffeine comes in many forms, Rula notes. And if you're like most people, you probably enjoy a cup of coffee each morning or a late-afternoon soda to ...

Caffeine is the most widely consumed psychoactive substance. Whereas the use of alcohol and tobacco are usually limited during pregnancy, beverages containing caffeine are consumed at a normal or ...