Is Average Resting Heart Rate Declining Over Time?
Population data points to a real, sustained drop in resting heart rate over decades, not a wearable-era illusion.
This article covers population-level (not individual) trends in resting heart rate over multi-decade time spans, based on longitudinal survey data. It does not cover whether an individual's own resting heart rate should be dropping, nor does it address wearable measurement accuracy.
A long-running population study out of Norway found that average resting heart rate fell substantially across a 22-year window, in both men and women, across all age groups. The decline tracked alongside shifts in blood pressure, cholesterol, triglycerides, body mass index, smoking rates, and physical activity, though it also showed up in some form independent of any single one of those factors. This is one of the few sources actually built to detect a trend over time rather than a snapshot, which matters given how much of the resting heart rate literature is cross-sectional.
The question behind the question
Anyone who has compared an old health record or an early fitness tracker log to their current numbers has probably wondered whether resting heart rate has been trending downward across the population, not just for them personally. The instinct is reasonable: cardiovascular medicine has changed, exercise habits have shifted, and the devices we use to measure heart rate have proliferated. But whether the average person's resting heart rate today is genuinely lower than a few decades ago is a different question from whether any one person's number is dropping for reasons specific to them.
The tension people run into is this: if resting heart rate really is falling at a population level, is that because bodies are healthier now, because medications are more common, because measurement habits changed, or some mix that resists a clean answer?
2 studies
- Age-adjusted average resting heart rate fell from 73.4 to 64.7 beats per minute in men and from 78.3 to 66.4 beats per minute in women across four survey waves spanning 22 years. The decline was consistent survey to survey and similar across sexes, age groups, and birth cohorts.
- Reviews the history and clinical significance of resting heart rate as a marker of health, noting that longitudinal data show a clear association between rising heart rate over time and adverse health outcomes, and that wearable and digital health tools have expanded how heart rate data is collected.
What seemed to be driving the drop
The Norwegian data did not just log a lower number over time, it also traced what moved alongside it. The decline in resting heart rate was more pronounced in people who shifted from unfavorable to favorable ranges of blood pressure, cholesterol markers, triglycerides, body mass index, smoking status, and physical activity level. People who started blood pressure medication during the study period also saw their resting heart rate move, and the strongest individual predictors of a person's own decline were drops in systolic blood pressure and triglycerides, along with increases in physical activity.
That pattern matters for how the population-level trend should be read. It was not a uniform drift that hit everyone equally regardless of their health profile. It tracked recognizable, measurable shifts in cardiovascular risk factors, which is a more specific claim than simply saying 'heart rates are dropping.' For readers curious about what a single elevated reading might mean for their own risk profile, that's a separate question, since a population trend and an individual reading are not interchangeable, and I'd point to what an elevated resting heart rate actually means for that.
I think it's also worth situating this alongside the broader mortality literature. Large-scale analyses have consistently tied higher resting heart rate to greater risk of death from any cause and from cardiovascular causes specifically. That's part of why a population-wide decline would be notable if it holds up, though the mortality studies themselves weren't designed to explain why average heart rate might be falling over time.
2 studies
- A meta-analysis of 46 prospective cohort studies covering over 1.2 million participants found each 10 beats per minute increase in resting heart rate was associated with a 9% higher relative risk of all-cause mortality and an 8% higher relative risk of cardiovascular mortality.
- Reviews evidence that resting heart rate is an independent predictor of cardiovascular and all-cause mortality, with risk rising continuously above 60 beats per minute, and that heart-rate-lowering drugs contribute to treatment benefit after heart attack, in heart failure, and in stable angina.
What this doesn't settle
The clearest population-level evidence for a declining trend comes from a single long-running study set in one country, spanning a specific historical window. It's a strong, purpose-built source for detecting secular trends. But it's also just one population, and it doesn't tell us whether the same trajectory has continued into the wearable-tracking era, or how it looks in other regions with different medication use, smoking rates, or activity patterns.
It's also a distinct question from what's happening now, day to day, on someone's wrist. Readers wondering whether a personal reading reflects meaningful change versus noise might find how wearables measure resting heart rate a more directly relevant next stop, since population trends over decades and daily fluctuations captured by a sensor are measuring the same physiological signal at very different resolutions.
The population decline described here was documented in a single-country cohort followed through 2007. It does not establish whether resting heart rate has continued declining, plateaued, or reversed in the years since, and it was not studied in a population using consumer wearables to track the trend.
Why the drivers matter more than the number itself
The most useful part of the Norwegian data may not be the topline drop in beats per minute. What I find more telling is that the decline traced back to specific, well-understood risk factor changes rather than some unexplained drift. That distinction separates a population health story from a mysterious physiological shift, and it lines up with what's known about how resting heart rate responds to things like changing blood pressure and activity levels in individuals, a topic covered in more practical terms in how to lower resting heart rate.
None of this settles whether the same mechanisms would produce the same trend in a different country, a different decade, or a population with different medication and lifestyle patterns. The evidence establishes what happened in one long-running cohort and what correlated with it there. It doesn't extend automatically to claims about global trends, or about what's driving any individual's own numbers today.
Common questions
Has resting heart rate actually gone down over the decades, or does it just seem that way because of fitness trackers?
The clearest evidence for an actual decline predates widespread wearable use. A population study following the same communities across surveys from the mid-1980s through the mid-2000s recorded a substantial drop in average resting heart rate in both men and women, measured through standard clinical methods rather than consumer devices.
What caused the average resting heart rate to drop in that study?
The decline tracked most closely with improvements in blood pressure, cholesterol and triglyceride levels, body mass index, smoking rates, physical activity, and the start of blood pressure medication in some participants. People whose risk factor profiles improved most showed the largest declines in resting heart rate.
Does a falling average resting heart rate mean people today are healthier than in the past?
The study ties the decline to specific measurable shifts in cardiovascular risk factors within one population, which is suggestive but not the same as a broad claim about overall health across all populations or time periods. It doesn't extend to newer data collected through wearables or to countries outside the one studied.
Is this decline continuing today?
That's not established by the evidence covered here. The longitudinal data run through the mid-2000s, and there is no equivalent long-term tracking data in this evidence set covering more recent years.