Higher resting heart rate and lower heart rate variation increases the risk of heart disease in older adults
High resting heart rate and lower heart rate variation increases the risk of heart disease in older adults. Researcher Dr. Behnam Sabayan wrote, “It has been hypothesized that heart rate and heart rate variability are markers of frailty, an increased vulnerability to stressors and functional decline. However, the direct link between these two parameters and ...click here to read more