What caffeine does to your body and brain

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What caffeine does to your body and brain
One of the common reasons people use caffeine is to help them focus on a task, and no wonder: one of the more clear mental effects of caffeine is a boost in the ability to focus, especially for someone who is fatigued. Research shows that commercial drivers who cover long distances are significantly less likely to crash if they’ve consumed caffeine in any form — coffee, tea, pills, or energy drinks. However, most people are familiar with caffeine jitters too — if you consume too much of it, it’s hard to focus on anything.



Many of us depend on caffeine. Some of us can't even start our day without it.

Whether you get your daily caffeine fix from coffee, tea, or a canned energy drink doesn't make much of a difference. It's still a stimulant with some positive and negative effects.

For starters, caffeine makes most of us feel more alert and awake. But while it can keep us focused, too much can also backfire. And it also affects everything in our bodies from our digestion to our metabolism and vision.

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