Mental tasks 'impaired in the air'

[mhm]

Passengers should stick to puzzles or books during a flight rather than making big decisions, the first UK professor of aerospace medicine says.

Mental tasks are impaired at high altitude, so dealing with key emails is best avoided, says David Gradwell.

Passengers should follow health advice to avoid side-effects such as jet lag and dehydration, he says.

"Flying is safe," he told a news conference. "Millions of people do it every year without any issues at all."

Prof Gradwell, of King's College, London, said most people could tolerate cabin pressurisation quite well.
http://www.bbc.co.uk/news/health-22357419