Could human lives be extended by slowing down our hearts? Triggered by the observation that mammals with a higher heart rate live shorter than those with a slower one, this is the question that Dr. Herbert J. Levine, an eminent cardiologist and professor emeritus at Tufts University School of Medicine, asked in his 1997 article “Rest Heart Rate and Life Expectancy.”
To this day, his question has not been fully answered. But several recent studies have found important links between slower hearts and longer lives, elevating resting heart rate to the level of an important health indicator.
With the increasing…
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