What Is a Healthy Resting Heart Rate?

Resting heart rate is how many times your heart beats per minute while you are awake, calm and physically at rest. The American Heart Association puts the normal adult range at 60 to 100 beats per minute. Trained endurance athletes often sit far lower, and large cohort studies find mortality risk climbing steadily across the upper half of that range.

It is also one of the easiest numbers to misread. A single reading tells you very little, and the same figure can mean completely different things in an athlete, in someone taking a beta blocker, and in someone running a fever.

What are the headline numbers?

• Normal adult range: 60 to 100 bpm, measured sitting or lying down, calm and feeling well (American Heart Association).
• Under 60 bpm is common in endurance athletes. In a small 2025 study of 22 national-level Australian triathletes in Sports, 68.2% had sinus bradycardia; the paper cites reports of rates below 30 bpm, almost all in endurance athletes (Climstein et al., 2025).
• About 9% higher all-cause mortality per 10 bpm. A 2016 CMAJ meta-analysis of 46 prospective cohorts (1,246,203 participants, 78,349 deaths): relative risk 1.09 (95% CI 1.07 to 1.12) per 10 bpm, rising to 1.45 (95% CI 1.34 to 1.57) above 80 bpm (Zhang, Shen and Qi, 2016).
• The association survives adjustment for fitness. The Copenhagen Male Study, a 16-year cohort of 2,798 men with 1,082 deaths in Heart (2013): mortality rose 16% per 10 bpm (95% CI 10% to 22%) after adjusting for VO2 max (Jensen et al., 2013).
• Training moves it a few beats, not tens. A 2018 meta-analysis of 191 studies in the Journal of Clinical Medicine: exercisers dropped 3.3 bpm (4.7%) more than controls (Reimers, Knapp and Reimers, 2018).

What is a normal resting heart rate for an adult?

The American Heart Association states that a normal resting heart rate is 60 to 100 beats per minute when you are sitting or lying down, calm and feeling well — the conventional adult reference range used in clinics worldwide.

Below 60 bpm is bradycardia by that definition, and the same organisation is explicit it often is not a problem: rate falls below 60 during sleep, and athletes sit there routinely. Above 100 bpm at rest is tachycardia, which it notes depends on age, health status and physical condition.

Why is the 60 to 100 range increasingly questioned?

Because the epidemiology shows no cliff at 100. The 2016 CMAJ meta-analysis of 46 cohort studies found that, compared with 45 bpm, all-cause mortality risk rose in a broadly linear fashion, with no clean breakpoint at the top of the normal band. People in the 60 to 80 bpm band — squarely inside the normal range — already carried a relative risk of 1.12 (95% CI 1.07 to 1.17) versus the lowest category, though for cardiovascular mortality the rise only reached significance around 90 bpm.

The Melbourne Collaborative Cohort Study in Heart (2018) points the same way: across 41,386 participants and 9,846 deaths, each 10 bpm increase carried a hazard ratio of 1.11 (95% CI 1.07 to 1.16) for cardiovascular death, 1.10 (95% CI 1.06 to 1.13) for cancer death and 1.20 (95% CI 1.16 to 1.25) for other causes (Seviiri et al., 2018). The editorial accompanying it was titled, pointedly, Resting heart rate: what is normal? (Nanchen, 2018).

So 60 to 100 is a descriptive population convention, not a personal risk boundary — and none of this makes a reading of 85 bpm abnormal or dangerous for any individual.

Typical resting heart rate	What it commonly reflects	Caveats
Under 40 bpm	Mainly highly trained endurance athletes, and sleep	Also rate-slowing medication and conduction problems; only a clinician can tell these apart
40 to 59 bpm	Common in trained and active adults; the AHA definition of bradycardia	Also expected on beta blockers. Unremarkable in a fit, symptom-free adult; not so with dizziness or fainting
60 to 79 bpm	Middle of the conventional adult range for a calm, seated reading	Cohorts still show a small graded risk gradient here; a population average is not an individual verdict
80 to 100 bpm	Still inside the conventional normal range	Where cohorts show the clearest excess risk — but also easily produced by caffeine, stress or one flight of stairs
Over 100 bpm at rest	The AHA definition of tachycardia	Often temporary: fever, anxiety, pain, stimulants. Persistent readings on separate calm days warrant a doctor

What is a normal resting heart rate by age?

The largest real-world dataset is the Health eHeart Study in npj Digital Medicine (2019), where 66,788 participants contributed 3,144,332 on-demand smartphone measurements (Avram et al., 2019). Mean heart rate was 79.1 bpm (SD 14.5); the 95th percentile was 110 bpm or below aged 18 to 45, 100 bpm or below aged 45 to 60, and 95 bpm or below over 60.

Counterintuitively, increasing age tracked with a slightly lower rate there, while female sex, higher body mass index and more medical conditions tracked with higher readings. Two caveats: these were readings taken during daily life rather than standardised resting measurements, so they run high; and the authors disclosed industry ties, including one employed by Azumio, the app company that supplied the data.

Why do trained endurance athletes have such low resting heart rates?

The classical explanation — high vagal tone, training leaving the parasympathetic nervous system holding the brakes harder at rest — is incomplete. A 2014 study in Nature Communications found training-induced bradycardia persisted even after the autonomic nervous system was blocked, both in living mice and in the denervated sinus node in vitro, alongside a downregulation of the pacemaker channel HCN4 and its funny current (D’Souza et al., 2014). Training appears to change the pacemaker itself — though that work was in animals and isolated tissue, so it explains a mechanism rather than settling the human case. A trained heart also ejects more blood per beat, needing fewer beats for the same output, the adaptation driven by aerobic base work such as Zone 2 cardio.

Lower is not infinitely better. A 2008 European Heart Journal study of 62 former Swiss professional cyclists versus 62 age-matched golfers (mean age 66) found sinus node disease in 10% of ex-cyclists versus 2% of controls — though their observed survival was no different from expected (Baldesberger et al., 2008).

Does a lower resting heart rate mean I am fitter?

Partly, but it is not a fitness score. The Copenhagen Male Study (Heart, 2013), which measured VO2 max directly by bicycle ergometer test, confirmed that resting heart rate was inversely related to fitness (p < 0.001) — fitter men did have slower hearts.

Yet it carried information fitness did not. In that cohort of 2,798 men, those above 90 bpm had a hazard ratio of 3.06 (95% CI 1.97 to 4.75) for death versus men at 50 bpm or below, after adjustment for VO2 max, physical activity and conventional risk factors. It is neither a mere proxy for aerobic capacity nor a substitute for measuring it — our explainer on VO2 max covers that separately.

How should you measure your resting heart rate properly?

The American Heart Association describes the manual method: find the pulse at the inner wrist, place your index and middle fingers lightly on the artery until you feel each beat, and count the beats in 60 seconds. The inside of the elbow, either side of the neck and the top of the foot also work.

Conditions matter as much as technique. Take it at the same time each day — ideally on waking before getting out of bed, or after sitting quietly for five minutes — and before caffeine, nicotine or exercise. A reading taken while ill, dehydrated, in pain or after a bad night is not your resting heart rate.

Wearables are fine for trends: the 2019 npj Digital Medicine validation found smartphone photoplethysmography agreed closely with simultaneous ECG in 50 cardiology patients (intraclass correlation 0.90). Devices define resting heart rate differently, so compare a device against itself and watch the trend over weeks.

What raises resting heart rate?

Acutely, the American Heart Association notes your pulse can rise when you are stressed, anxious, happy or sad, and that pain may increase it too. Add caffeine and other stimulants, alcohol, heat, dehydration, poor sleep and recent exercise, and a swing of 10 to 20 bpm across one day is unremarkable.

Illness is a big one, now measurable at scale. A 2020 study in The Lancet Digital Health analysed over 13.3 million resting heart rate and sleep measurements from 47,249 consistent Fitbit wearers across five US states, and found weeks with an elevated share of raised resting rates improved prediction of state-level influenza-like illness over CDC baseline models (Radin et al., 2020).

Chronically: deconditioning, higher body mass index, smoking, chronic stress and poor sleep, plus medical causes such as thyroid disease, anaemia and arrhythmia. The Copenhagen Male Study found a borderline smoking interaction — risk per 10 bpm of 20% (95% CI 12% to 27%) in smokers versus 14% (95% CI 4% to 24%) in non-smokers. Pushing the other way, the American Heart Association lists beta blockers and calcium channel blockers among drugs that slow heart rate, so a low reading while taking one is a drug effect, not a fitness badge.

How much can training realistically lower it?

Less than most people hope. The 2018 Journal of Clinical Medicine meta-analysis pooled 191 studies covering 215 samples of healthy participants and found exercising groups lowered their resting rate by 4.7% or 3.3 bpm more than controls — 6.4% (4.3 bpm) in men, 4.8% (3.4 bpm) in women. Endurance training and yoga were the only modalities that significantly lowered it in both sexes; strength training alone did so only in women. The authors declared no conflict of interest.

Reductions were larger in people starting from a higher rate and smaller in older participants. Athlete numbers in the 40s reflect years of high-volume endurance training on favourable genetics; a few beats over several months is the realistic expectation, and the training itself is the health intervention, not the number it produces.

What does this evidence not establish?

Every mortality figure above comes from observational cohort studies, which show association, not causation. Nobody has randomised people to a resting heart rate, and no trial shows that lowering the number by itself extends life.

• Confounding by fitness is only partly handled. The Copenhagen Male Study adjusted for directly measured VO2 max, which is unusually rigorous — but its fitness test ran in 1970 to 1971 while resting heart rate was measured in 1985 to 1986.
• Confounding by illness and reverse causation. Undiagnosed disease raises resting heart rate, so some excess mortality may reflect sickness already present. The Melbourne Heart 2018 analysis did not adjust for arrhythmias or atrial fibrillation.
• The meta-analysis flags its own weaknesses. The 2016 CMAJ authors reported substantial heterogeneity and publication bias across the 46 studies, so the pooled figures are approximate.
• Measurement variability is large, and relative risk is not personal risk. One reading moves with posture, time of day, emotion, hydration and device, and cohorts mostly used a single standardised baseline rather than a wrist-worn nightly average. A 9% relative increase per 10 bpm across a million people says little about what one person’s number means for them.
• Declared conflicts: the Copenhagen Male Study, the Melbourne analysis, the Heart editorial and the 2018 exercise meta-analysis all reported none; the 2019 Health eHeart norms paper carries the industry disclosures noted above.

When should a resting heart rate be checked by a doctor?

This article is educational information, not medical advice, and nothing in it is a diagnostic threshold. Anyone worried about their heart rate — especially with symptoms — should be assessed by a clinician rather than interpreting the number alone. The American Heart Association describes these as signs warranting medical attention.

• A persistently fast resting rate: repeated readings over 100 bpm on separate calm days, not one high reading after coffee.
• A slow rate with symptoms: its bradycardia list is fatigue or weakness, dizziness or lightheadedness, confusion, fainting or near-fainting, shortness of breath, tiring easily during exercise, and chest pain.
• Palpitations: its tachycardia list adds a fluttering or pounding chest sensation and a bounding pulse in the neck, plus chest discomfort, breathlessness, sweating, nausea and fainting.
• Syncope or near-syncope: fainting, or nearly fainting, alongside a fast, slow or irregular pulse should be assessed rather than watched.
• A sudden unexplained change from your own long-run baseline, even if the number still sits inside the normal range.

Chest pain, severe breathlessness or collapse are emergencies needing urgent care, not a wearable app. If you take a beta blocker or any other rate-affecting medicine, changes in your reading are a conversation with your prescriber, never a reason to adjust a dose yourself.

Resting heart rate is a useful, cheap signal — most valuable as a personal trend line, least valuable as a single number held against a chart. This piece was researched and written by The Wonder Drop research and content team; we are not clinicians, every figure links to its primary source, and any number worth acting on is worth discussing with a doctor first.