Health

Surprising ways that caffeine affects your body and brain

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Coffee, tea, and cola are just three substances many of us look to for our daily caffeine fix. But what exactly is happening to our brain and body when we take in this colorless, odorless, tasteless drug?

From our bloodstream to our brain, caffeine affects multiple areas of our body in different ways that ultimately leads to more than just a boost in wake-fullness: Caffeine can also improve our mood, enhance focus, and reduce appetite.

Here's a graphic that shows what caffeine is doing in our bodies hours after consumption.  

Artboard 2
Skye Gould/Business Insider

Kevin Loria also contributed to this article.

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Skye was the Design Director for Business Insider and Insider. She led the Graphics and Photo teams in producing all graphics, data visualizations, story art, photography, and special projects for the newsroom.
Jessica Orwig
Jessica Orwig
Jessica Orwig is a senior editor at Business Insider, where she collaborates with reporters, editors, and producers across teams to shape, write, edit, and publish stories that connect with a global audience. While her roots are in science and technology journalism, her work today spans business, careers, culture, and the big ideas shaping the future.She earned her Master’s in Science & Technology Journalism from Texas A&M University and holds a Bachelor’s in Astronomy & Physics from The Ohio State University. Throughout her career, she’s helped lead coverage on everything from space exploration and climate change to innovation, the future of work, and evolving cultural trends.Career HighlightsLed coverage on scientific milestones, including:Reported on breaking news and scientific discoveries, including:Popular stories she’s edited on science and health:Popular stories she’s written and/or edited on careers, culture, life, and business: