Apple Watch sleep apnea notifications launched two years ago. Since then, the health feature has been quietly working in the background and making a difference for people who may not know they need it.

Apple Watch Ultra flagged a serious health issue for an Air Force veteran

A new story from Military.com highlights one such case involving David Aladejobi, a 38-year-old Air Force veteran whose Apple Watch alerted him to possible sleep apnea.

Aladejobi initially brushed off the possible sleep apnea Apple Watch notification. After thinking about his snoring, however, he contacted his doctor and shared a screenshot of the alert. He had also been experiencing headaches that his doctor suspected could be related to sleep.

“I got the notification saying, you may have sleep apnea through the watch. I didn’t really think much about it.…