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Earth Has a Heartbeat, but No One Really Knows Why
The Pentagon's New Laser-Based Tool Uses Your Heartbeat to Track You
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The Pentagon's new heartbeat detection laser could save us from our surveillance horror
Heart rate: What is a normal heart rate?
What is an Irregular Heart Beat? | Cardiac College
Beta blockers reduce stress-induced irregular heart rhythm | YaleNews
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Is It Normal for a Child to Have an Irregular Heartbeat? - Cardiac / Heart Health, Featured, Health Topics, Pediatrics - Hackensack Meridian Health
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Your Heart Beat Will Now Identify You for Secure Credit Card Use - TheStreet
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Heartbeat | Texas Heart Institute
The Heartbeat Model - a secret for team speed - red10 Dev Ltd
