Help Eradicate Alzheimers Disease

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Ancient Plagues & A New Pandemic

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About this Video

from SciShow

Hank explores the science behind the topics of the day, including a look at the current "pandemic" of concussions in professional sports and new insights into what really caused the worst plagues in human history, and what it portends for the future. Relax, it's not all bad! Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://www.thelancet.com/journals/laninf/issue/current http://www.foxnews.com/health/2014/01/09/concussion-epidemic-should-helmets-be-banned-from-football/ http://www.ninesights.com/community/nfl-ge-grand-challenge http://www.ninds.nih.gov/ http://www.ninds.nih.gov/news_and_events/news_articles/pressrelease_nfl_tbi_12162013.htm