Most Apple Watch users won’t get health benefits from AFib detection, study finds

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Usual treatments don’t quite fit the typical Apple Watch user.

One promised benefit of the Apple Watch is early detection of a heart condition called atrial fibrillation, a type of irregular heart rhythm. But most people who wear the watch are in a demographic that wouldn’t actually be able to do much with that information, according to a new study — most doctors wouldn’t prescribe them the medication usually given for that condition, which is usually detected in older people.

Getting an alert about a heart rhythm, then, doesn’t help the typical Apple Watch user’s overall health, says study author Josh Pevnick, co-director in the division of informatics at Cedars-Sinai Medical Center in Los Angeles. “It can cause anxiety for people who it identifies, and if there’s no treatment, then you’re maybe not bringing much benefit,” he says.