Heart Rate Variability, Aging, and Cardiovascular Fitness

Source https://www.fightaging.org/archives/2021/11/heart-rate-variability-aging-and-cardiovascular-fitness/

Heart rate variability is an increasingly popular measure of cardiovascular health. Heart rate variability is known to decline with age, but to what degree is this a reflection of processes of cardiovascular aging versus the loss of physical fitness that is a feature of old age in our present, overly sedentary societies? This remains an open question, and an important one, given the range of evidence for exercise programs, and thus increased physical fitness, to be as effective as many medical interventions when it comes to improving cardiovascular health and reducing mortality in later life. Yes, aging causes an inevitable decline in physical condition, but living a sedentary lifestyle certainly speeds up that process.

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