Astronomical headaches

In space, no one can save you from your headaches. That’s the word from a study into elevated levels of CO2 on the International Space Station, published last month in the Journal of Occupational and Environmental Medicine, official publication of the American College of Occupational and Environmental Medicine (ACOEM).  Dr Jennifer Law, Flight Surgeon at NASA Johnson Space Center, led the study, which gathered data on CO2 levels and headaches reported by crew across more than a decade, between 2001 and 2012. Headaches occurred more frequently during periods of higher CO2 levels, they learned. For every 1 mm Hg (millimeter…