Why Does Skipping Coffee Give Me Headaches

I normally drink about ten cups of coffee per day but today I decided to cut back and haven t had any caffeine but now my head hurts and I don t know why do YOU know why Caffeine : Hosted by: Hank Green Support SciShow by becoming a patron on Patreon: Dooblydoo thanks go to the following Patreon supporterswe couldn t make SciShow without them Shout out to Kevin Bealer, Mark TerrioCameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi Looking for SciShow elsewhere on the internet Facebook: Twitter: Tumblr: Instagram: Sources: Images: