Researchers investigate impact of stress on police officers' physical and mental health / Eurekalert, 26 September 2008
http://www.eurekalert.org/pub_releases/2008-09/uab-rii092608.php
"Policing is dangerous work, and the danger lurks not on the streets alone.
The pressures of law enforcement put officers at risk for high blood pressure, insomnia, increased levels of destructive stress hormones, heart problems, post-traumatic stress disorder (PTSD) and suicide, University at Buffalo researchers have found through a decade of studies of police officers."