There's no better start to the day than sipping on a cup of coffee. Not only does it taste great, but its caffeine works wonders to perk us up for the day ahead. And what if we told you that giving ...

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 ...

Coffee doesn’t just perk up your brain, it might be flipping important switches inside your cells, too. While known for boosting alertness and offering some health perks, caffeine also tinkers with ...

We’ve built a complex culture around caffeine. Not only do we have a variety of caffeinated products such as coffee, tea, sodas, energy drinks and pills, but we also have a lot of advice, especially ...

Despite the common belief that chocolate makes you hyper, the truth lies in its caffeine content — and it’s probably not as ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. A few years ago, researchers in ...

Adding sugar or artificial sweeteners to coffee disrupted the body clocks in mice more than coffee on its own, researchers have found, with it causing day and night to be reversed in some mice. If ...

Suddenly stopping caffeine can cause the brain to go into withdrawal. This happens because caffeine temporarily block receptors, and then when the caffeine is stopped, the brain releases too much of ...