Why Are Challenge Videos a Thing?

From cinnamon to Tide pods, “challenge videos” are dangerous. So why do people do them?
Hosted by: Hank Green
----------
Support SciShow by becoming a patron on Patreon: / scishow
----------
Dooblydoo thanks go to the following Patreon supporters:
Lazarus G, Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz
----------
Looking for SciShow elsewhere on the internet?
Facebook: / scishow
Twitter: / scishow
Tumblr: / scishow
Instagram: / thescishow
----------
Sources:
www.ncbi.nlm.n...
www.ncbi.nlm.n...
www.pnas.org/co...
onlinelibrary.w...
www.ncbi.nlm.n...
journals.sagepu...
psnlab.princeto...
cloudfront.esc...
www.newsweek.co...
www.bumc.bu.edu...