The awe we feel in nature can dramatically reduce symptoms of post-traumatic stress disorder.

Military personnel, who suffer these afflictions at a greater rate, may finally get some relief.

Psychiatrists recruiting military veterans for next phase of research on new form of nerve stimulation.

Meditation training may help reduce stress disorders among U.S. military personnel.

Prions, long studied by UCSF professor and Nobel laureate Stanley Prusiner, build up in the brain to cause Alzheimer's and other dementias. Now they're linked to post-traumatic stress disorder in combat veterans and in the brain damage of athletes who have suffered repeated concussions.

Discovery ends geneticist's 20-year quest for cause of rare IMAGe syndrome.