​Apple launches study to identify irregular heart rhythms with the Apple Watch


Apple launched a new app today that will allow the company to gather irregular heart rhythm data from the Apple Watch’s heart rate sensor. 

Called the Apple Heart Study app, it will detect irregularities and send notifications to users who may be suffering from atrial fibrillation (AFib).

Apple first mentioned its Heart Study initiative back in September when it launched watchOS 4.

 The company is partnering with Stanford University on the project. The company plans on using heart rate data to better inform patients, doctors, and researchers of cases of heart irregularity.

“Working alongside the medical community, not only can we inform people of certain health conditions, we also hope to advance discoveries in heart science,” said Jeff Williams, Apple’s chief operating officer, in a statement.

 The app uses the Apple Watch’s existing technology to measure heart rate through green LED lights flashing hundreds of times per second and photodiodes that detect the amount of blood flowing through the wrists.

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