Resting Heart Rate and Life Expectancy, Dr. Herbert J Levine, American College of Cardiology

…”the fundamental object of contention in the life struggle, in the evolution of the organic world, is available energy.” – Ludwig Boltzmann (1886)

Intro to the article/ Why this paper is important? By Dr Beck

Any physician who begins an editorial on one of the most earth-shattering scientific studies of the human heart with a quote from the father of modern thermodynamics and physical chemistry has my attention, now! In this short, concise editorial for the American College of Cardiology, Dr Levine lays out the argument for longevity in humans based on one factor alone – resting heart rate. The lower the nascent resting heart rate, the longer lived the individual, irrespective of other cardiovascular disease or condition. Then he goes a step further, comparing this finding with studies of other mammals. As it turns out, all mammals studied have from 1-3 billion heart beats in a lifetime (Figure 2A). As Dr Levine writes, “These observations suggest that despite wide variations in body size and heart rate, the total number of heart beats/ lifetime among mammals is remarkably constant.” What confirmation of Darwinian evolutionary theory! What an amazing finding! Summarizing, he concludes, “Together, the above observations suggest that a primary reduction in myocardial metabolic rate, with associated cardiac slowing, may have the potential to prolong human life.”