Normal resting heart rate may vary from person to person

Normal resting heart rate may vary from person to person

How to differentiate between a panic attack and heart attack Resting heart rate is perhaps the most fundamental vital sign, but is also the most temperamental, which means it can change from time to time. The normal heart rate ranges between 60 and 100 beats per minute, with 70 as the normal reading in a healthy adult. However, in athletes, the reading tends to be far below that, and in pregnant women, it exceeds the maximum normal of 100 bpm. Previously, resting heart rates more than 90 bpm and less than 65 bpm, have been tied to a higher cardiovascular risk. Doctors have long recognized that this viral has limitations, saying that it provides little information about the current health of a patient unless it drastically deviates from the expected range. To land to their findings, the team conducted a retrospective, longitudinal cohort study involving 92,457 people from the United States between March 2016 and February 2018. The researches collected daily resting heart rate, and its link to BMI, sex, age, sleep duration, and variations over time. They found that normal variations from person to person occur by as much as 70 bpm. “Individuals have a daily RHR that is normal for them but can differ from another individual’s normal by as much as 70 bpm. Within individuals, RHR was much more consistent over time, with a small but significant seasonal trend, and detectable discrete and infrequent episodes outside their norms,” the team concluded in the study. The team also observed a small seasonal trend in the RHR, with January incurring higher values, and July has lower values. Further, some people experience occasional heart rate fluctuations that differ by 10 or more beats per minute from their normal range. Heart monitoring sensors With the advent of smartphones and wearable sensors, doctors can monitor their patient's daily resting heart rates, providing a clear picture of their heart health. The study sheds light on the importance of tracking a patient’s daily resting heart rate could help doctors assess a person’s heart status than a one-time check. The team also said that day-to-day changes in RHR could be the first individualized digital vital sign, thanks to wearable sensor technologies. Journal reference: Quer, G., Gouda, P., Galarnyk, M., Topol, E., and Steinhubl, S. (2020). Inter- and intraindividual variability in daily resting heart rate and its associations with age, sex, sleep, BMI, and time of year: Retrospective, longitudinal cohort study of 92,457 adults. PLOS ONE. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0227709



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