The association between altitude and suicide has been discussed on HN before [1].<p>The paper from the University of Utah that is mentioned in the Nat Geo article is at [2]<p>[1] <a href="https://news.ycombinator.com/item?id=37120758">https://news.ycombinator.com/item?id=37120758</a><p>[2] <a href="https://pubmed.ncbi.nlm.nih.gov/24495565/" rel="nofollow">https://pubmed.ncbi.nlm.nih.gov/24495565/</a>