Beyond obvious mood spoilers such as poor hygiene and bad breath, we each have a distinct natural scent that appears to guide us toward choosing a partner with compatible DNA. Scientists have found that women prefer the scents of men with a complementary set of genes that code for the immune system.

CNN: The science of kissing

Instead, under a new code of practice, a list of male "complementary" bishops will be drawn up for clergy who refuse to work with female bishops.

BBC: Clergy renew women bishops threat