Hair thickness, a trait whose importance only women can appreciate, is mostly about genes. http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=10412069&fileId=S1832427416000451&utm_source=Issue_Alert&utm_medium=Email&utm_campaign=THG …pic.twitter.com/oHayR30zKF
10:47 PM - 20 Jul 2016
from Berlin, Germany
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