The moustaches being grown by Canadian men this month to raise money for men's health programs can range from pencil-thin to the classic Tom Selleck moustache. But some men just can’t grow them at all.
CBC science columnist Torah Kachur explored the science behind the ‘stache including:- Why some men are more talented at growing moustaches than others. (Testosterone isn't as big a factor as you might think.)
- Why dark-haired men often have reddish facial hair.
- How facial hair affects men's sexual attractiveness to women.