Photoplethysmography (PPG) is an optical technique used to detect changes in blood volume. This data is useful for monitoring a range of cardiovascular health measures — like blood pressure, heart rate and arterial oxygen saturation — that can predict serious conditions, like heart disease.
Jenna Tsui is a technology journalist with writing experience in future & disruptive technologies, AI, medtech, and scientific development. To see more of Jenna's work, visit The Byte Beat , follow her on Twitter or check her out on LinkedIn.
Image credit: Gerd Altmann from Pixabay
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