We’re a nation fuelled by caffeine. We drink about 100 million cups of tea a day, according to the UK Tea & Infusions Association; and, says the British Coffee Association, somewhere in the region of ...

We all know this person – do not speak to them until they have had a cup of coffee or an energy drink. Hot chocolate just won't do the trick. They will not be nice. They will not be alert. Proceed ...

For most people, consuming some caffeine is harmless — but too much can be dangerous. Recent news coverage has raised questions about the amount of caffeine in some popular drinks and what consumers ...

Paraxanthine, a compound the body naturally produces when it breaks down caffeine, is starting to appear in energy drinks and even some coffee products as a potential caffeine alternative.

Were you tossing and turning last night and cursing yourself for the iced caramel macchiato you drank in the late afternoon? Do you worry about the amount of caffeine in a Mountain Dew? Caffeine is ...

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 study ...

Dear Mayo Clinic: I love to drink coffee. I often have multiple cups a day. Recently, I was diagnosed with diabetes and high blood pressure. My doctor advised that I may want to cut back on my ...

Caffeine is considered a universal stimulant, but among people with Attention Deficit Hyperactivity Disorder the response to ...

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 ...