Scientists at MIT have developed an iPhone app that can measure your heart rate without you touching it. All you have to do is stare–the app will use the iPhone’s front-facing camera to take care of the rest. Named Cardiio and released by health startup Rock Health, the app takes users’ heart rate by measuring the amount of light reflected off the face: an indicator of the amount of blood pumped to the face. More blood being pumped indicates a higher heart rate and results in less light reflected. Studies have shown that Cardiio measures heart rate within 3 beats per minute of standard devices.
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Untouchable: Cardiio app reads heart rate from a stare
Jenny Wilson is a freelance journalist based in Chicago. She has written for Time.com and Swimming World Magazine and served stints at The American Prospect and The Atlantic Monthly magazines. She is currently pursuing a degree from Northwestern University's Medill School of Journalism.
Jenny Wilson does not hold any investments in the technology companies she covers.
She writes for SmartPlanet and is not an employee of CBS.