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DeepHeart AI IDs sleep apnea, hypertension via Apple Watch

From Engadget - November 13, 2017

According to Cardiogram, heart rate sensors can detect both conditions, because your body's autonomic nervous system connects your heart with the brain, stomach, esophagus, liver, intestines, pancreas and blood vessels. The company needed data to be able to train its AI to recognize heart rate patterns that denote the presence of the conditions, though, so it recruited 6,115 of its app's users to participate in an online study with the UCSF Health lab.

Cardiogram managed to collect 30 billion sensor measurements composed of the subjects' heart rate and step counts, which it then fed to its AI. Since 37 percent and 17 percent of the participants have hypertension and sleep apnea, respectively, the AI got the samples it needed to be able to say whether someone has either condition.

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