Whenever someone goes to a clinic for a physical check-up, it is common for their primary doctor to measure their heart rate by putting the stethoscope on their chest. That or whenever someone just went for a run, jog, sprint, or any other physical activity, they can hear their heart beats by putting their own hands on their chest (and same goes for putting their fingers on their necks to fell the blood pulsing and pumping). Now, Google researchers just figured a way on how to give earbuds the ability to measure heart rates. According to an article by Phandroid, the types of earbuds that the researchers used were…
