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How Do We Know We’re Tired?

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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.

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Sources:
https://www.sciencedirect.com/science/article/abs/pii/S1097276521009333?via%3Dihub
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5465131/
https://www.sciencedirect.com/science/article/pii/S2451994417300068
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.0050277

Images:
https://www.istockphoto.com/photo/man-snores-at-night-gm1225328904-360616144
https://www.storyblocks.com/video/stock/extremely-tired-overworked-woman-yawning-and-expressing-exhaustion-inside-during-the-day-h6qbv2eqwj7ckwpm7
https://www.istockphoto.com/vector/circadian-rhythm-human-biological-clock-gm1267110107-371661187
https://www.cdc.gov/niosh/work-hour-training-for-nurses/longhours/mod2/11.html
https://commons.wikimedia.org/wiki/File:DNA_UV_mutation.svg
https://www.istockphoto.com/photo/tired-young-woman-sleeping-on-couch-at-home-gm1258280097-368967365
https://commons.wikimedia.org/wiki/File:CSIRO_ScienceImage_7598_larval_zebra.jpg
https://commons.wikimedia.org/wiki/File:Protein_PARP1_PDB_1uk0.png
Zebrafish blood vessels
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.0020148
https://www.istockphoto.com/vector/seamless-black-dice-isolated-on-white-gm1307376965-397661859
https://www.istockphoto.com/vector/dna-molecular-break-gm472349465-26385996

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