DNA differences which appear to affect the risk of giving birth early have been found by US scientists. The US National Institutes of Health study found the variants in both babies and mothers, a US conference was told. It is thought they may play a role in controlling immune responses which...

A small number of extremely overweight people may be missing the same chunk of genetic material, claim UK researchers. The findings, published in the journal Nature, could offer clues to whether obesity can be "inherited" in some cases. Imperial College London scientists found...