Are you getting too much caffeine? Here's what researcher Marilyn Cornelis wants you to know.

Add Yahoo as a preferred source to see more of our stories on Google. For most healthy adults, consuming up to 400mg of caffeine a day is considered safe - Getty According to Nichola Ludlam-Raine, a ...

Smoothie King serves up delicious and nutrient-filled smoothies to its many fans. It also delivers one of the most caffeinated drinks on the fast food market ...

Sparkling water may help gamers stay focused during long gaming sessions, reducing mental fatigue without the need for ...

TAMPA BAY, Fla (BLOOM) – Feeling groggy when you wake up? You might think grabbing a cup of coffee right away is the best way to jump-start your day. But did you know there’s a better way to time your ...

That morning cup of coffee feels routine, right? But the caffeine kick might not be. Consumer Reports tested popular coffees ...

Q: I’ve heard that the caffeine boost from matcha is “better” than the one you get from coffee, with fewer jitters and anxiety. Does science support that? Matcha, once a nic ...

Paraxanthine is the main metabolite of caffeine. Studies suggest it can boost alertness and focus, but the research base is ...

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

Brigette Muller wasn’t a big fan of caffeine for most of her life. Just a few sips just made her jittery and never seemed to have any upsides. But, during the COVID-19 pandemic, Muller started ...

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.