If you're interested this paper has a very detailed look at how flights affect us http://www.ncbi.nlm.nih.gov/pubmed/21981017 http://www.ncbi.nlm.nih.gov/pubme

If you're interested this paper has a very detailed look at how flights affect us http://www.ncbi.nlm.nih.gov/pubmed/21981017 http://www.ncbi.nlm.nih.gov/pubmed/21981017 I read it when I had access years ago.