Dealing with a mental health issue like post-traumatic stress disorder (PTSD) can be challenging. Yet treating other health issues can sometimes help relieve PTSD symptoms too.

For heart attack patients, getting post-traumatic stress disorder is fairly common. Those with PTSD are also likely to have another cardiac event, and sleep troubles may play a role.

Military service can be brutal on a person's body. But it may be even more brutal on a person's sleep. Insomnia, sleep apnea and too little sleep appear common among military personnel.