We've been warned repeatedly about the health perils of being out-of-sync with our body clocks. Are we eating in the right way for these circadian rhythms, and could changing our mealtime habits boost our health ...

 The World Health Organization (WHO) is to hold an emergency meeting to discuss the risk of Ebola spreading from the Democratic Republic of Congo.

 China's leading car-hailing firm is overhauling its service following the murder of one of its users.

 Facebook has confirmed its chief executive will meet leading members of the European Parliament to discuss privacy concerns in Brussels.

 Malaysian police have searched the home of ex-Prime Minister Najib Razak, one week after he lost the national election.

 Facebook says it deleted or added warnings to about 29 million posts that broke its rules on hate speech, graphic violence, terrorism and sex, over the first three months of the year.