prevent

The findings also showed that the cocoa drink high in flavanols was effective at preventing the decline in vascular function following stress and fat consumption.

Others said they were trying to check in for flights and the "systems are down" or that technical problems had prevented them from booking flights.

The team hoped to use the light pulses to prevent the bursts by switching off neurons that contained light-sensitive proteins.

They added that a board-commissioned independent review of the BBC’s workplace culture is under way, focusing on preventing abuse of power and ensuring everyone at the BBC conducts themselves in line with company values.

The group will assess structural integrity and recommend safety measures in an effort to prevent future tragedies.