Can Airplane Travel Affect Your Brain?

Angela Duckworth: Airplane travel raises your stress level, exposes you to germs and empties your energy tank. The reduced air pressure on airline flights can reduce the amount of oxygen in passenger's blood between six and 25%. It could be that you think the work you're doing is awesome, but that when you are back at full oxygen levels, it may not be. Maybe you're doing your very best work on airplanes.