BOSTON -- One in six veterans who return home from the wars in Iraq and Afghanistan are suffering from post-traumatic stress disorder.

NewsCenter 5's Heather Unruh reported Tuesday that some veterans are trying something new to help heal their inner wounds.

The wounds are not easy to see. They're buried deep in the minds war veterans, who returned home years ago are free of physical scars, but still haunted by memories on the battlefield.

Veterans living with post-traumatic stress disorder suffer from nightmares, panic attacks and night sweats. But they're now using yoga classes like one in West Boylston, Mass., to help ease their symptoms.

"It's a class that helps heal the wounds that combat vets bring home with them," Central Mass Yoga Institute's Lucy Wagner said.

The yoga is for all combat veterans. It focuses on different exercises and breathing techniques that are designed to relieve anxiety and release anger.

"We try to teach the students to accept their feeling with compassion -- not always to revisit the past," Wagner said.

The war in Iraq has definitely brought old wounds to the surface again for many of the older veterans. And talking about their fears often makes them feel worse. But they say yoga helps them relax and find inner peace.

"It makes you feel more relaxed. It gives you a different outlook on life. It gives you a chance to reflect and be aware of yourself," veteran Michael Dziokonski said.

"When I have a really bad day, I do meditation and relax and go to sleep," veteran Tom Conner said.