The attractiveness of body odour is also correlated with the attractiveness of the body it came from, even when presented separately from that body.

ECONOMIST: Odour and mating preferences

If homosexuality is caused by unusual in-utero testosterone exposure (a plausible hypothesis), then the system that controls body odour may change in related and detectable ways.

ECONOMIST: Support for the idea of human sex pheromones

The reasons are apparently that scars could open up in space, dental problems could cause serious complications, and body odour must be avoided in a confined spacecraft.

BBC: China's female astronaut quandary

MHC, helps to determine body odour.

ECONOMIST: Cor, you don��t half smell

When police officers entered the home on Friday, they noticed an odour consistent with that of a decomposing body, he added.

BBC: Two bodies found after New Jersey hostage stand-off