Check out Medical Confessions: https://www.youtube.com/channel/UCi8jkvwpSmGoDtfrIw_HDKQ
→Some of →’s important to understand how testosterone is produced and how hair grows.
Want the text version?: http://www.todayifoundout.com/index.php/2013/02/why-testosterone-effects-body-hair-growth/
Sources:
http://www.horizonti.net/clanki/the%20biology%20of%20hair%20growth.pdf
http://www.anabolicsteroidcalculator.com/resources/articles/ebooks/testosterone_ads/chapter6.pdf
http://www.livestrong.com/article/83986-testosterone-made/
http://www.medicinenet.com/low_testosterone/article.htm
http://en.wikipedia.org/wiki/File:Lance_Armstrong_MidiLibre_2002.jpg
