The Apple Watch heart monitor sends too many people to the doctor

The heart monitoring feature on the Apple Watch may lead to unnecessary health care visits, according to a new study published this week. Only around 10 percent of people who saw a doctor at the Mayo Clinic after noticing an abnormal pulse reading on their watch were eventually diagnosed with a cardiac condition.

The finding shows that at-home health monitoring devices can lead to over-utilization of the health care system, said study author Heather Heaton, an assistant professor of emergency medicine at the Mayo Clinic College of Medicine, in an email to The Verge. That may be expensive for patients and for the system as a whole, and it may take up doctor and patient time unnecessarily.

Heaton and the study team scanned patient health...

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