From joining a gym to taking up running, getting fit is a perennially popular new year's resolution. We lead sedentary lifestyles and have easy access to energy-rich food, so we need to do voluntary ...

It is common knowledge that diet and exercise are key to achieving and maintaining a healthy weight, but many people have their own opinions about which factor is most important. And it is a challenge ...

Correspondence to Dr Claude Bouchard, Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana 70808, USA; claude.bouchard{at}pbrc.edu There is evidence from human twin ...