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The Reason That Caffeine Exists Isn't Because You Need It

 

While many people often wonder how caffeine really works, once that first cup starts coursing through our veins, the instant gratification seems to subdue our curiosity. That's where scientists come in. A recent video made by Reactions and PBS, shows exactly why caffeine even exists (it has to do with beeswho knew), what chemical compounds go into your morning brew and even why milk has a billowing cloud appearance when it's added to your cup. 

Below, watch the video and tell us what you think.