New Research Finds Exercise Helps Reduce PTSD in Veterans

Scientists at the Veterans Administration say exercise stimulates a brain section key to easing PTSD symptoms
1:57 | 05/04/13

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Transcript for New Research Finds Exercise Helps Reduce PTSD in Veterans
-- Nothing beats an hour -- PT on a warm spring day. PT short for physical training that's what they call working out in the military and health former staff Sargent Nick Garcia thinks. One of the biggest things I was chasing was that adrenaline rush. You might feel that way too if you fought with and lost friends in Afghanistan you might come back feeling more than that actually. Cost me a lot of turmoil -- my family. Became real distant from one another didn't want to be around them felt really isolated one to say about myself. -- -- shaped room quite a bit when I first came home access oppressive feelings. In short he returned with post traumatic stress disorder doctor Thomas -- specializes in that at the VA hospital. It's when you have something terrible happened to you and your hunted by -- stuck in a loop you might say and as it turns out research indicates exercise may be a way out of it. And actually looks like almost like a jelly roll that's rolled up here. Hence this experiment that works for the possibilities of exercise as a Q a section of the brain called identity nucleus contains a rash of -- -- stem cells. Exercise stimulates them. The researchers so promising that singer songwriter John Mayer showed up today he's adopted PT SD is a cause and not superficially. He's given time and notice and money he was almost reluctant to be interviewed. I think if you have celebrity -- have a voice it's the duty of that voice to have enough knowledge so that you don't derail what it is you're talking about. So now it's back to the experiment no drugs just a lot of effort hoping to sweat away what might have seemed an intangible affliction. Until these people started to live it. I thought it was kind of a myth in -- -- no -- case more or less entice our affiliate myself and I realize that you know it's a real thing. From the Presidio Wayne Freedman ABC 7 NEWS.

This transcript has been automatically generated and may not be 100% accurate.

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