"February is Heart Month, so it's appropriate to speak with the team that built the recently introduced hypertension notifications system for watchOS 26 and Apple Watch. I spoke with Apple's Steve Waydo, director for health sensing, and Dr. Rajiv Kumar, physician-researcher, who offered a glimpse into the science and decisions behind their lengthy project to give smartwatch users an actionable and reliable tool to track this aspect of heart health."
"Understanding Hypertension Hypertension is a state of chronic high blood pressure. Each time your heart beats, it moves blood out of the heart and into your blood vessels. When blood pressure is high, there's a lot of back pressure so the heart must beat harder than usual to get the blood out. That, over time, is called hypertension. The problem with this condition is that it's totally asymptomatic, which is why it is seen as a silent killer."
A hypertension notification system for watchOS 26 and Apple Watch was developed to detect asymptomatic high blood pressure and provide actionable alerts. Development required new sensor capabilities, world-class technical and clinical expertise, and accurate machine learning grounded in clinical validation. A large-scale heart health study was launched with the University of Michigan to support the approach. The idea originated soon after the first Apple Watch by leveraging continuous physiological data collection. Hypertension is chronic high blood pressure, largely asymptomatic, affecting over 1 billion people worldwide and nearly half of US adults, many unaware of their condition.
Read at Computerworld
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