How Do We Know We re Tired

Go to to try their Applied Probability course. Sign up now and get 20 off an annual Premium subscription. Sleep is complicated. And there s still a lot we don t know about it, but zebrafish larvae are a surprisingly good place to look to learn more about what makes us sleepy. Hosted by: Hank Green SciShow is on TikTok Check us out at Support SciShow by becoming a patron on Patreon: Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Chris Peters, Matt Curls, Kevin Bealer, Jeffrey Mckishen, Jacob, Christopher R Boucher, Nazara, Jason A Saslow, charles george, Christoph Schwanke, Ash, Bryan Cloer, Silas Emrys, Eric Jensen, Adam Brainard, Piya Shedden, Jeremy Mysliwiec, Alex Hackman, GrowingViolet, Sam Lutfi, Alisa Sherbow, Dr. Melvin Sanicas, Melida Williams, Tom Mosner Looking for SciShow elsewhere on the internet SciShow Tangents Podcast: Facebook: Twitter: Instagram: Sources: Images: