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More from TodayIFoundOut:
How Exactly Do You Prove You're Alive if You're Accidentally Declared Dead?
https://youtu.be/lCbit1NM4FY
In this video:
Do women’s menstrual cycles sync up over time if they are in close proximity to each other? Being someone who lives with 4 girls and 1 other boy, this knowledge would be very beneficial. I feel like I should know if the estrogen ocean I’m swimming in will have very stormy seas every 28 days. The belief that this occurs is widely known. In 1999, one study reported that 80% of women believe this phenomenon occurs and 70% of them find it pleasant to have this be the case.
Want the text version?: http://www.todayifoundout.com/index.php/2013/03/myth-or-fact-womens-menstraul-cycles-synchronize-if-they-live-together-or-are-in-close-proximity-for-large-amounts-of-time/
Sources:
https://smartsite.ucdavis.edu/access/content/group/d7cd5927-cc77-43da-857b-3abebfc3d22f/ReadingsIII/Yang-Schank2006.pdf
http://www.scientificamerican.com/article.cfm?id=do-women-who-live-together-menstruate-together
http://www.sciencebasedmedicine.org/index.php/menstrual-synchrony-do-girls-who-go-together-flow-together/
http://women.webmd.com/tc/normal-menstrual-cycle-topic-overview
http://pediatrics.aappublications.org/content/111/4/844
http://www.psych.ucsb.edu/~roney/other%20pdf%20readings/reserve%20readings/wilson.pdf
