Do You Need a Brain to Sleep?

Start building your ideal daily routine with Fabulous. The first 100 people who click on the link will get 25% OFF Fabulous Premium: https://thefab.co/scishow3You might think you need a brain to be able to sleep, but organisms with super simple neural networks can still "sleep" sort of like we do. So, if these organisms can sleep too, then what is sleep anyway?Hosted by: Stefan ChinSciShow is on TikTok! Check us out at https://www.tiktok.com/@scishow ----------Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow----------Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:Bryan Cloer, Chris Peters, Matt Curls, Kevin Bealer, Jeffrey Mckishen, Jacob, Christopher R Boucher, Nazara, charles george, Christoph Schwanke, Ash, Silas Emrys, Eric Jensen, Adam Brainard, Piya Shedden, Alex Hackman, James Knight, GrowingViolet, Sam Lutfi, Alisa Sherbow, Jason A Saslow, Dr. Melvin Sanicas, Melida Williams, Tom Mosner----------Looking for SciShow elsewhere on the internet?SciShow Tangents Podcast: http://www.scishowtangents.orgFacebook: http://www.facebook.com/scishowTwitter: http://www.twitter.com/scishowInstagram: http://instagram.com/thescishow----------Sources:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4651462/https://www.thieme-connect.de/products/ejournals/abstract/10.1055/s-0037-1604351https://www.science.org/doi/abs/10.1126/science.aax5440https://www.nature.com/articles/4351177ahttps://elifesciences.org/articles/26557https://academic.oup.com/sleep/article/30/4/389/2708189https://www.science.org/doi/10.1126/sciadv.abb9415https://www.nature.com/articles/nature.2017.22654https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4948738/https://www.livescience.com/44822-how-do-dolphins-sleep.htmlhttps://www.bbc.com/news/science-environment-39126993https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/electroencephalogram-eeghttps://www.cell.com/neuron/fulltext/S0896-6273(00)80877-6https://www.science.org/lookup/doi/10.1126/science.287.5459.1834https://www.cell.com/current-biology/pdf/S0960-9822(17)31023-0.pdfhttps://www.nature.com/articles/nature06535https://www.science.org/doi/10.1126/sciadv.abb9415https://www.quantamagazine.org/sleep-evolved-before-brains-hydras-are-living-proof-20210518/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2929498/https://www.nature.com/articles/s41583-018-0098-9Images:https://www.istockphoto.com/vector/human-brain-3d-render-gm638943260-114878145https://commons.wikimedia.org/wiki/File:Sleeping_well.jpghttps://www.istockphoto.com/photo/mans-best-friend-gm1309758774-399374174https://www.istockphoto.com/photo/african-elephant-resting-gm173871387-8343739https://www.istockphoto.com/photo/dolphins-gm531670033-55510392https://www.istockphoto.com/photo/dolphin-resting-gm145990097-6058531https://www.storyblocks.com/video/stock/underwater-photography-of-mammals-dolphins-diving-in-water-and-swimming-to-surface-sunlight-in-water-and-on-skin-dolphins-whirl-and-writhe-in-clear-water-concept-of-natural-environment-and-life-sdw-iecrdkn65z0q4https://www.istockphoto.com/photo/tropical-fruit-fly-drosophila-diptera-parasite-insect-pest-on-ripe-fruit-vegetable-gm1300236924-392625865https://www.istockphoto.com/photo/extreme-magnification-fruit-fly-gm679914528-124571529https://www.istockphoto.com/photo/hydra-vulgaris-freshwater-hydroid-gm177320934-20139861https://www.researchgate.net/figure/Types-of-hydra-a-Normal-Hydra-b-Head-of-Hydra-Nerve-cells-are-visualized-by_fig1_221812789https://www.eurekalert.org/multimedia/751946https://www.eurekalert.org/multimedia/680527https://commons.wikimedia.org/wiki/File:Enlarged_c_elegans.jpghttps://www.eurekalert.org/multimedia/801800https://www.eurekalert.org/multimedia/721406https://www.storyblocks.com/video/stock/insomnia-a-man-lying-in-bed-and-can-not-sleep-b0bk-xpqvjrgu0frahttps://www.istockphoto.com/photo/andromeda-cassiopeia-gm495690168-78129725https://www.istockphoto.com/photo/yellow-tube-sponge-and-diver-gm1167841984-322224825https://www.istockphoto.com/photo/orange-rubber-sponge-gm1266584143-371321587https://www.istockphoto.com/photo/marine-sponge-gm1204406384-346537648https://www.istockphoto.com/photo/sleeping-in-is-my-favourite-pastime-gm1189299504-336697434https://www.storyblocks.com/video/stock/many-jellyfish-swim-underwater-rmpcs0gaukbtebkaohttps://www.istockphoto.com/photo/dolphins-family-gm1192080061-338567620