Selfies Could Be Used To Check Blood Pressure

Selfies could have a vital health purpose beyond simply boosting your self-confidence or showing off your post-workout gains.

In a new study, researchers at the University of Toronto figured out a way to accurately measure blood pressure with your cellphone’s camera by developing a technology known as transdermal optical imaging (TOI).

Optical sensors on smartphones can capture red light reflected from hemoglobin under our skin, which permits TOI to visualize and measure blood flow changes,according to a press release accompanying the study.

By capitalizing on the translucent nature of facial skin, researchers were able to measure the blood pressure of 1,328 Canadian and Chinese adults by capturing two-minute videos of their faces on an iPhone.

The study was published in the journal Circulation: Cardiovascular Imaging.

 
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