https://community.usms.org/swimming/f/general/6330/ny-times-article-on-maximum-heart-rateFrom www.sportsgeezer.com: Minimal Agreement About Maximum Heart Rates "The New York Times' Gina Kolata confesses that she suffers from maximum heart rate envy of her husband, even though her husband will not disclose his maximum heart rate. Geezeren-USTelligent Community 12