Genes link sexual maturity to body fat in women

An international group of scientists, including researchers at the Medical Research Council (MRC), has discovered 30 genes that control the age at which girls reach sexual maturity. They found that many of the genes responsible for puberty also play…

Aerobic exercise relieves insomnia

CHICAGO — The millions of middle-aged and older adults who suffer from insomnia have a new drug-free prescription for a more restful night’s sleep. Regular aerobic exercise improves the quality of sleep, mood and vitality, according to a small but…