If you feel down, or need a quick happy boost, a friendly tickle fight might help you out!
Hosted by: Hank Green
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Sources:
https://www.nbcnews.com/health/body-odd/laugh-it-tickle-spa-opens-spain-flna1C6437346
https://www.youtube.com/watch?v=Sjyl-ti3xAY
https://www.jstage.jst.go.jp/article/tjem/239/3/239_243/_article
https://hms.harvard.edu/sites/default/files/HMS_OTB_Spring10_Vol16_No2.pdf
https://www.mayoclinic.org/healthy-lifestyle/stress-management/in-depth/stress/art-20046037
https://www.ncbi.nlm.nih.gov/pubmed/15812260/
https://www.ncbi.nlm.nih.gov/pubmed/12652882
https://www.lymphcareusa.com/patient/therapy-solutions/complete-decongestive-therapy/manual-lymphatic-drainage-mld.html
https://pdfs.semanticscholar.org/8550/f3170d077661bb7b72f3b1d6b272d36f021f.pdf
https://greatergood.berkeley.edu/article/item/hands_on_research
https://link.springer.com/chapter/10.1007/978-1-4939-6418-5_13
http://www.its.caltech.edu/~squartz/Kringelbach.pdf
https://www.sciencedirect.com/science/article/pii/S0960982214007702
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4290532/
https://www.youtube.com/watch?v=d-84UJpYFRM
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0051959
https://www.ncbi.nlm.nih.gov/pubmed/23313827
Image Sources:
https://www.istockphoto.com/photo/little-boys-brothers-and-best-friends-laughing-gm920744122-252966390
https://www.istockphoto.com/photo/feather-tickling-bare-feet-gm157704809-17913719
https://en.wikipedia.org/wiki/Serotonin#/media/File:Serotonin-2D-skeletal.svg
https://en.wikipedia.org/wiki/Dopamine#/media/File:Dopamine.svg
https://www.istockphoto.com/vector/pituitary-gland-of-endocrine-system-medical-science-vector-illustration-diagram-gm1040570496-278570723
https://en.wikipedia.org/wiki/Adrenaline#/media/File:Epinephrine.svg
https://en.wikipedia.org/wiki/Cortisol#/media/File:Cortisol2.svg
https://www.istockphoto.com/photo/lol-gm496947906-78843027
https://en.wikipedia.org/wiki/Orbitofrontal_cortex#/media/File:MRI_of_orbitofrontal_cortex.jpg
https://en.wikipedia.org/wiki/Oxytocin#/media/File:OxitocinaCPK3D.png
https://www.istockphoto.com/photo/three-laboratory-rats-in-a-cage-gm1019889110-274048941
https://www.istockphoto.com/vector/rat-mouse-seamless-pattern-vector-cartoon-scarf-isolated-tile-background-repeat-gm1145388134-308279273
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