Hyper-vigilance is one common symptom of post-traumatic stress disorder. PTSD, an anxiety disorder, can develop after a terrifying or life-threatening event, or a series of events causing extreme stress.
Nearly 20 percent -- or one in five returning war veterans -- reported symptoms of post-traumatic stress disorder or major depression. But, only slightly more than half of them sought treatment, the study found.
The US military on Thursday said it killed two alleged drug traffickers in a strike on...
The US military said on Friday that it carried out a strike on a vessel in...
New documents show the crew on board the United States' newest aircraft carrier are growing increasingly...
