Caffeine 101, National Geographic

Nearly 90 of the United States population has at least one caffeinated beverage every day. Learn about the chemistry of caffeine, how it causes increased alertness and focus, and how caffeine is capable of causing overdoses. Subscribe: , NationalGeographic, Caffeine, Educational About National Geographic: National Geographic is the world s premium destination for science, exploration, and adventure. Through their worldclass scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what s possible. Get More National Geographic: Official Site: Facebook: Twitter: Instagram: Read more in Do you love or loathe coffee Your genes may be to Caffeine 101, National Geographic National Geographic