
Study examines age and gender effects on heart rate variability (HRV) over nine decades. HRV decreases with age, with gender differences diminishing after 50 years.
Where Published: Journal of the American College of Cardiology. 1998; 31(3): 593-601.
Authors: Ken Umetani, M.D.; Donald H. Singer, M.D., F.A.C.C.; Rollin McCraty, Ph.D.; Mike Atkinson
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