The scent of a woman is a complex thing
A European study on whether men prefer the smell of women who are immunologically similar to them has revealed some surprising results.
Until now, scientists have theorised that partners are drawn to those whose immune systems best complement their own, leading to offspring with the best possible immunity to disease.
Body odours portray information about a person's genotype at the major histocompatibility complex (MHC), called human leucocyte antigen (HLA).
While there is strong experimental support for MHC-associated mating behaviour in