Caffeine and Adenosine Receptors

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**Our new PODCAST: http://DanielAndJorge.com • **ORDER our new book: http://WeHaveNoIdea.com • How much coffee is too much coffee? • Subscribe to PHD TV: http://youtube.com/subscription_cente... • More at: http://phdcomics.com/tv • Written and Illustrated by Dwayne Godwin and Jorge Cham • Animated by Jorge Cham • Narrated by Meg Rosenburg • Comic originally published in Scientific American Mind • NOTES: It would be hard - maybe impossible - to OD on coffee. You'd likely vomit before a toxic level was reached. But the equivalent caffeine from pills has been fatal. Caffeine pills cause most caffeine-related ER deaths because of what they do to your heart. Some links: • http://www.huffingtonpost.com/kristin... • http://iospress.metapress.com/content... • http://www.newswise.com/articles/mode... • http://www.nejm.org/doi/full/10.1056/...

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