What caffeine does to your body and brain

Caffeine has a number of health effects on the body and brain. Depending on how you consume it, caffeine could improve memory, boost athletic performance, and be good for the heart. But too much of it may also cause irritation or anxiety. Many of us can’t start our day without a jolt of caffeine. Various caffeinated drinks affect your health in different ways. Coffee itself seems to be associated with significant health benefits , including reduced cancer risk, improved liver function, and a lower risk for cognitive decline. But other caffeinated beverages like energy drinks have surprisingly high sugar levels , which may have negative health effects but. But caffeine itself can do a lot, including boost athletic performance, improve memory, and — according to one recent review of studies — it may improve heart function. The popular stimulant has both positive and negative effects. It makes most of us feel more alert, awake, and focused, but too much can also backfire. It also affects a host of processes in our bodies, including our digestion, metabolism, and vision. Here’s what’s really going on after you drink a cup of joe. Caffeine is the most commonly used psychoactive drug in the world. One of the things rarely mentioned about caffeine is that it is, in fact, a drug. In fact, it’s the most commonly used psychoactive drug in the world, which is probably why we don’t think about it as a drug. Caffeine has psychoactive effects, and changes the way we feel and interact with the world around us. Yet think of how many of us can’t — or won’t — go through a day without it. Harvard neuroscientist Charles Czeisler has hypothesized that caffeine, combined with electricity, allowed humans to escape natural patterns of sleep and wakefulness, breaking them […]

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