According to the Apple site, it states that "Apple worked with the Food and Drug Administration (FDA) for a number of years to receive De Novo classification for the ECG app and the irregular heart rhythm notification, making the features available over the counter." Apple also states that "The irregular rhythm notification feature was recently studied in the Apple Heart Study. With over 400,000 participation". 

You might be asking the question as it pertains to SmartWatches. It is a technology that is available today to Monitor and tracks your health and wellness.

Perhaps for the better... if you are inactive. Or on the flip side if you're too active how much stress are you putting in yourself. Or how much sleep are you getting? Because all these things can also affect your heart. Correct me if I'm wrong.

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