A recent study conducted by scientists from the Czech Republic showed that women found the odour of sweat from men's shaved armpits more attractive than the sharp smell of hairy armpits. The women, who participated in the study, did not know, what kind of samples they were given to smell during the study.
The women could not tolerate the smell from unshaved armpits. The researchers believe that the study showed the process of evolution in action.
Under the pressure of society, women start to prefer weakened odours of the male body or, rather, artificial smells (perfumes, deodorants), while nature provided for a positive reaction to natural sweat odours. Evolution left hair in armpits to attract opposite sexes to each other.