Post-traumatic stress disorder (PSTD) normally stems from witnessing a shocking, dangerous, or life-threatening event. Researchers recently conducted an analysis of nearly 300 Australian military veterans from the Vietnam War era and found those with a history of PTSD were much more likely to experience sleep disorders, gastrointestinal problems, cardiovascular diseases, and numerous other health conditions. Based on the findings the researchers conclude that, “The higher frequency of comorbid physical conditions suggests that PTSD be conceptualized not as a purely mental disorder, but rather as a systemic disorder. Integrated healthcare strategies directed at the psychological and physical health of patients with PTSD, as well as rigorous control of risk factors, are likely to improve their quality of life and their survival.” Medical Journal of Australia, March 2017