A lot of dating involves our eyes and minds when we should be using our nose. Studies show that you can learn a lot about a person strictly from their BO. For example, if your underarms smell pretty good, it could be because you’ve been eating a good amount of meat. So if you want to know if someone’s a vegan, you know what you need to do.
Also, it turns out that single people have a different funk than those who are coupled up. More specifically, married men have less of a scent than single guys do. According to odor psychologist Mehmet Mahmut, married men tend to have lower testosterone which also accounts for them having less BO. Meanwhile, single dudes without any kids have higher T levels and probably stink…with desire.
However, science has yet to prove that humans use body odor to choose their partners on achemical level.Studies of married couples found there was no evidence to show anyone's husband or wife’s stank matched up with their true preferred smells. Just be happy that you can smell. Mahmut says people who have lost their sense of smell tend to have “poorer relationship outcomes.”
Source:BBC