Service dogs can help veterans with sleep disorders, reports Capital Journal.

In one case, a dog trained to listen for the CPAP machine noticed something else wasn’t right, and when the owner wouldn’t wake up, the dog woke the wife. The man was having a stroke.

“Fortunately, that gentleman is still with us today. But it was because his dog was able to alert his wife that he was in some kind of trauma. And that was a puppy that was on its way to a kill shelter,” Dickerson said.

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