Shift workers are more at risk of having a heart attack or stroke than day workers, research suggests.

The former head of the UN mission in Syria says President Assad's fall is "only a matter of time", as Syrian forces renew an assault on Aleppo.

Michael Phelps admits his greatest battle at London 2012 could be with his mind rather than rival Ryan Lochte.

Usain Bolt says he has overcome injury problems and is ready to defend his Olympic titles in London.

The US says it fears Syrian forces are preparing to carry out a massacre in the country's most-populous city, Aleppo, as troops encircle it.

Greek PM Antonis Samaras is set to meet international creditors to try to persuade them Athens deserves its final bailout instalment.

The UN chief urges countries to show flexibility as Friday's deadline looms for a draft text of a new global treaty to control international arms sales.

Norwich City sign Leeds United captain Robert Snodgrass for an undisclosed fee, handing him a three-year deal.