Caffeine can linger in your system for 10 or more hours, which can impact sleep. Double-shot lattes and cold brews have ...

A recent study found that your morning cup of coffee really does make you happier – even if you're not a caffeine addict. The study involved researchers from the University of Warwick in the United ...

Fact checked by Nick Blackmer At a Glance Common coffee habits, like adding too much sugar, drinking it first thing in the ...

A cup of coffee is one of life's simple pleasures. It's a morning ritual for many thanks to its star ingredient, caffeine. Even the smell of a fresh brew can be enough wake someone up from a groggy ...