According to The New York Times, his ring asked him if he was working out and showed that âhis heart rate shot up to over 100 beats per minute.â
100bpm is the higher end of whatâs considered a normal resting heart rate. The fact Booker considers that âshooting upâ probably means his resting rate is lower. The ring asking if he was exercising indicates the device correctly identified Booker experienced an unusual for him amount of physiological stress.












