Science Questions

Sun, 13th Feb 2005

Part of the show Science of Sex, Smell and Pheromones...

Question

David asked:

I'm sure that when I was younger, personal hygiene wasn't such a big thing, especially shaving body hair.

Answer

One of the functions for the hair under our arms is to act as a wick. They soak up some of the smelly chemicals under our arms. These chemicals have been shown to influence the timing of the female menstrual cycle.

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