Returning from a tour of duty can be incredibly difficult for members of the military. Many of them suffer from post-traumatic stress disorder, and changing back into civilian clothes can feel a little strange.

Another adjustment, as unexpected as it may sound, is driving on American roads again. Data shows that there is a higher rate of car accidents among veterans after deployments.

One 63-year-old woman has returned home after being deployed to Iraq. One of her jobs there was to deliver large sums of money to Iraqi reconstruction projects away from American bases. She says she was "hypervigilant" on those trips. Now that she's back in the U.S., she says she lives in a state of anxiety when she drives. That can be a problem since she needs to drive to visit patients for her nursing job.

She's not alone. A lot of veterans struggle with anxiety when they're on the roads. In a review of driving records by an insurer of active duty troops, research reveals that car accidents in which service members were at fault increased by 13 percent after deployments. According to the New York Times, accidents were particularly common within the first six months of returning from an overseas tour.

It makes sense that it would affect veterans of Iraq or Afghanistan this way. Experts say that their experience is unique because their combat experiences frequently involved roadside bombs and other dangers on the road.

Since this problem is a relatively new phenomenon, there is no straightforward treatment, but experts are conducting clinical trials to develop new therapies.

Source: New York Times, "Back from war, fear and danger fill driver's seat," James Dao, Jan. 10, 2012