• Adrenal, thyroid and gonadal axes are affected at high altitude 

      Wolff M.V., Nakas C.T., Tobler M., Merz T.M., Hilty M.P., Veldhuis J.D., Huber A.R., Hefti J.P. (2018)
      Humans cannot live at very high altitude for reasons, which are not completely understood. Since these reasons are not restricted to cardiorespiratory changes alone, changes in the endocrine system might also be involved. ...