Hospitals hope less urgent patients once again stay away as junior doctors in England prepare for a second all-out strike later in protest over a new contract.

"Clean air zones" targeting drivers of high-polluting vehicles should be extended to more cities in England, MPs say.

Levels of obesity in China's rural youth have rapidly increased, a study warns, because of socioeconomic changes.

Ministers and doctors have both vowed to fight on as the first all-out doctor strikes in the history of the NHS ended in England without any major problems.