Via @science_insider: many of us can’t start our day without a jolt of caffeine — which is a stimulant with some positive and negative effects. ☕️ it makes most of us feel more alert, awake, and focused, but too much can also backfire. here’s what’s really going on after you drink a cup of joe. 🖌:@bi_graphics
for more on what caffeine does to your body and brain, check out businessinsider.com.
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