New research suggests that women are more affected by CFS/ME than men, and this may be due to dysfunctional cortisol levels through persistant interaction with the immune system and women’s hormonal system.
Craddock T J, Fritsch P, Rice M A Jr, Del Rosario R M, Miller D B, Fletcher M A, Klimas N G, Broderick G (2014). A role for homeostatic drive in the perpetuation of complex chronic illness: gulf war illness and chronic fatigue syndrome
PLoS One. 2014 Jan 8;9(1):e84839. doi: 10.1371/journal.pone.0084839. eCollection 2014.