I'm not a fan of Trudeau but I can't make fun of someone for hair loss. Being almost 32 and having a full head of hair I still can't find the humour in hair loss. My biggest fear in the world is loosing my hair
Hat's man. Hat's cause male pattern baldness, ball caps actually bake the folicals off. Wett and warm too much. The brain shuts off the unnecessary hair and sweet to regulate head temperature. I will send you the abstract with the math, later some time.

Baldness can be reversed by head exposure to extreme cold which obviously promote hair to regulate head temperature. Results are seen in as little as three weeks at -8c.