iBeat Smartwatch Promises to Detect Oncoming Heart Attacks

Ryan Howard, the founder of Practice Fusion, and Dr. Mehmet Oz, the know-it-all celebrity doctor that’s always trying to sell you a miracle, have partnered to release a new heart rate monitoring smartwatch. The iBeat Life Monitor is touted to be able to detect “signs of oncoming cardiac arrest.” It supposedly is able to do this via photoplethysmography, a way of using a pulse oximeter to measure the variation of the blood volume in the distal vessels, and to extrapolate volume of blood pumped by the heart. We are a bit skeptical as this technology has its limitations, including accuracy…
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