The smart toilet seat includes three key sensors: an electrocardiogram to measure electrical activity of the heart; a photoplethysmogram to measure blood oxygen levels; and a ballistocardiogram to measure the mechanical force of the heart pumping blood.

Sensors in this battery-powered, cloud-connected toilet seat–based cardiovascular monitoring system successfully demonstrated cardiovascular monitoring of blood pressure, stroke volume, and blood oxygenation with the accuracy consistent with gold standard measurement. This system will be uniquely positioned to capture trend data in the home that has been previously unattainable, according to a study in the January issue of the journal JMIR mHealth and uHealth.

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