Comment by seltzered_

I recall seeing this article from 2014 referring to suicides in Utah ('utah paradox') and how neuroscientist Perry Renshaw was trying to link it to altitude: http://mic.com/articles/104096/there-s-a-suicide-epidemic-in... which links to another study from 2011: http://ajp.psychiatryonline.org/doi/abs/10.1176/appi.ajp.201...

"Together, the stray statistics and stories about life out west tipped off Renshaw to a common culprit: altitude-induced oxygen depletion. [...] Renshaw believes that oxygen-poor air tampers with brain chemistry, leading to a drop in serotonin and an uptick in dopamine."