How to Grow a Beard, According to Science

Have you ever wondered why some people can grow a full beard and others can't? One of the most commonly searched questions on the internet is "How Do I Grow a Beard?" As usual, science has an answer for that! Hosted by Hank Green.

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Thumbnail Image: https://commons.wikimedia.org/wiki/Fi...

Sources:
http://www.ncbi.nlm.nih.gov/pubmed/33...
http://www.scientificamerican.com/art...
http://www.cbc.ca/airplay/episodes/20...