If we are supposed to have facial hair, and if it has a practical, physical use, then why is it common practice to shave it off? And why don%26#039;t women have as much?|||It, and other secondary sexual characteristics, *possibly* had a role in sexual selection. (Females preferred males that had facial hair.) But other than that, the fact that men have it and women don%26#039;t is evidence that it serves no useful function unrelated to sexual selection, and thus would be a remnant of earlier ancestors.|||God abhors the practice of shaving your facial hair, it says it loudly and clearly in the Bible.
Evolutionary benefits? You still believe in that fairy tale?|||Supposedly, testosterone is a partial immunosuppressant -- that is, men with more testosterone would be more likely to catch diseases.
At some point, it may have been beneficial to have facial hair to delay biting flies in biting us under our chins and on our necks. Women, with their superior immune systems, could better weather the microorganisms transmitted by a fly bite.
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