RALEIGH, N.C. (WTVD) -- It's an epidemic around the country: Veterans' mental health. Those who served are more likely than the general public to die by suicide, and with many struggling from Post-Traumatic Stress Disorder (PTSD), some are turning to hyperbaric chambers to help with a different kind of treatment.

Mike Merzke served several combat tours in Iraq and Afghanistan, which took their toll when he came home.

"I was engaging in a lot more dangerous activities, almost like thrill seeking," he said.

He had tried medicine for his migraines and also had issues with PTSD.

"You just see the overwhelming suffering that weighs on a soul, you can't get around that," he said.

But in the end, it was his son, who has cerebral palsy, that made him take a look at a treatment that might hel

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