Children’s lung capacity improved in cleaner air

As air pollution in Stockholm has decreased, so has the lung capacity of children and adolescents has improved, a new study reports. The researchers consider the results important, since the lung health of the young greatly affects the risk of their de…

A molecular machine’s secret weapon exposed

RNAs can wreak havoc on cells if they aren’t removed at the right time. Dis3L2 is a molecular ‘machine’ that untangles and chews up RNAs, but scientists have been unable to explain how. Biochemists have now pieced together the answer. By shape-shifting…

Leptin helps hungry mice choose sex over food

To eat or to mate — that is the question (and the answer is: moderately hungry mice choose to mate). Researchers show that hungry mice prioritize interacting with members of the opposite sex over eating and drinking when their brains are stimulated wi…

Leptin helps hungry mice choose sex over food

To eat or to mate — that is the question (and the answer is: moderately hungry mice choose to mate). Researchers show that hungry mice prioritize interacting with members of the opposite sex over eating and drinking when their brains are stimulated wi…