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.

The mastermind of a white supremacist plot to kill Nelson Mandela, South Africa's first black president, is convicted of treason.

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 online retailer Amazon reports a 96% fall in profits for the three months to the end of June due to a robot maker deal.

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.

A Florida woman known as The Dutchess is charged with manslaughter over the death of a woman injected with toxic material during a buttock surgery.