What's a normal resting heart rate when you have a chronic illness?

Short answer

There is no single normal resting heart rate for chronic illness, and the published evidence explains why: the standard adult range of 60–100 bpm was built to flag danger, not to describe a person (2). A wearable study of 92,457 adults found that one person's normal can differ from another's by as much as 70 bpm, with individual averages spanning 40 to 109, while each person's own rate stayed remarkably consistent over time (1). Several conditions are associated with a resting rate a few beats above matched controls — and those few beats almost always still land inside the "normal" range.

If you have been told your numbers are fine while you feel anything but, you are not imagining the mismatch. A clinician can look at a resting heart rate of 68, call it normal, and be right — while that same 68 sits eight beats above where your body used to settle. The useful question is not "is this normal?" It is "is this normal for me, and has it moved?"

Note: this article is for educational purposes only and is not medical advice. A resting heart rate persistently above 100 bpm, below 50 bpm with dizziness or fainting, a heartbeat that feels irregular, chest pain, or breathlessness at rest needs medical assessment.

What is a normal resting heart rate for adults?

The standard clinical answer is 60–100 bpm for adults, and 40–60 bpm for well-trained athletes (2). That range exists to catch a heart too fast or too slow to be safe, and it does that job well. It was never designed to describe an individual, and it is wide enough to hide almost every change that matters to someone living with a long-term condition.

The clearest demonstration comes from the largest study of its kind: 92,457 adults across all 50 US states who wore a wrist heart-rate tracker for at least 35 weeks, producing nearly 33 million daily resting heart rate values. Mean daily resting heart rate was 65 bpm, with individual averages from 40 to 109 bpm, differing significantly by age, sex, body mass index and average sleep duration, and following a seasonal pattern — lowest in July, highest in January (1).

Two findings from that study are the whole argument for a personal baseline.

People differ enormously from each other. The authors put it plainly: individuals have a daily resting heart rate that is normal for them, and it can differ from another person's normal by as much as 70 bpm (1).

People are consistent with themselves — until they are not. Within a person, resting heart rate stayed relatively stable week to week. Yet 20% of participants had at least one week in which it moved by 10 bpm or more (1). A shift of that size is invisible against a 60–100 range and unmistakable against your own two-week median.

The range answers a safety question. Your baseline answers the question you actually have.

Why would a chronic illness raise your resting heart rate?

Resting heart rate is set by the balance between the two branches of your autonomic nervous system: the parasympathetic "rest and digest" branch slows the heart, the sympathetic "fight or flight" branch speeds it up. Anything that pushes that balance toward sympathetic activity, reduces blood volume, adds inflammation, fragments sleep or reduces fitness tends to raise resting heart rate — and many long-term conditions do several of those at once.

• Autonomic dysregulation. In POTS and related dysautonomia, the regulation itself is the problem. A meta-analysis in ME/CFS found higher resting heart rate, a larger heart-rate response to head-up tilt and a higher low-to-high-frequency ratio at rest (9).

• Persistent pain. A meta-analysis of 51 studies across chronic pain conditions found a consistent, moderate-to-large reduction in high-frequency heart rate variability — the component most closely tied to parasympathetic activity (10).

• Post-infectious change. Wearable data shows resting heart rate can stay altered for weeks to months after an infection, and longer in people who go on to report persistent symptoms (6, 5).

• Broken sleep. Sleep duration was one of the factors significantly associated with resting heart rate in the 92,457-person cohort (1), and disturbed sleep is near-universal across chronic illness.

• Reduced fitness and medication. Lower cardiorespiratory fitness raises resting heart rate, and several drug classes used across these conditions move it directly. Both travel with chronic illness; neither is the illness itself.

No study can cleanly separate these mechanisms in one person. What the literature can say is that the differences are modest, consistent in direction, and much smaller than the width of the "normal" range.

What does the published evidence say about resting heart rate condition by condition?

This is the part people search for, and the answer varies a great deal by condition. For ME/CFS, fibromyalgia and post-COVID symptoms there are meta-analyses and controlled studies with numbers. For migraine and perimenopause the evidence is thin, conflicting, or measures something other than resting heart rate.

Three things fall out of that table.

The differences are real and small. Where a number exists at all, it sits between roughly 1.5 and 8 bpm above matched controls. None of those gaps lifts a typical person out of the 60–100 range. If you were expecting the literature to explain a resting heart rate of 95, it will not.

The resting number is least useful exactly where people stare at it hardest. POTS is the clearest case: the criterion is entirely about what happens when you stand (4, 3). Someone with POTS and a resting rate of 62 does not have milder POTS than someone at 72.

Some of the gap may not be caused by the condition. In the post-COVID wearable data, the resting-heart-rate difference between people who later reported persistent fatigue and breathlessness and those who did not was already visible weeks before anyone was infected (8). Lower fitness, poorer sleep and pre-existing differences travel with chronic illness, and group comparisons cannot separate them.

Should you watch resting heart rate or heart rate variability?

Both, for different jobs.

Resting heart rate is simple, stable within a person and easy to measure consistently. It is good at showing sustained shifts — an infection, a flare, a change in fitness, a recovery. Its weakness is that it moves slowly and in small amounts, so a single day tells you almost nothing.

Heart rate variability — the variation in time between heartbeats — responds faster to stress, sleep and recovery, and it is far more personal. In a cross-sectional study of more than 8 million people using photoplethysmography, HRV declined steeply with age and varied strongly across the day (15), which is why comparing your number to anyone else's is close to meaningless. Its weakness is noise: one morning's HRV moves with sleep, alcohol, timing and how still you managed to be.

A practical rule: use resting heart rate to spot changes lasting several days, and HRV to understand how a week is going. Never decide from one morning of either. If your tracker and your body keep disagreeing, our article on when your metrics disagree with how you feel covers why that happens.

How do you find your own normal resting heart rate?

Measure the same way, at the same time. Resting heart rate is lowest and most consistent overnight or first thing in the morning, before you get up. A wearable's overnight figure is ideal; a manual count in bed on waking works too. Do not compare a 7am reading with a 3pm one.

Use at least two weeks. One morning tells you almost nothing. A two- to four-week median is a working baseline.

Know your spread, not just your middle. If your mornings range from 58 to 66, a 65 is ordinary for you. If they range from 58 to 61, the same 65 is a signal. The spread is the part most people skip, and it is what makes a baseline usable.

Pick a stable phase. If your condition fluctuates, a baseline from a settled month beats an average that blends flares and good weeks.

Recalculate after big changes. New medication, recovery from infection, a change of season, pregnancy or new training can all move your normal legitimately. Given the seasonal pattern in the large wearable cohort — lowest in July, highest in January (1) — a few beats between summer and winter is expected, not deterioration.

Write down what the number sat next to. How you slept, whether you drank, whether it was a flare week. A simple activity and symptom diary does this without much effort.

When is a change in resting heart rate worth paying attention to?

Against your own baseline rather than against 60–100:

• Up roughly 5 bpm or more for several days in a row, with no obvious cause like alcohol, a heatwave, a late night or the start of your period. Sustained multi-day rises commonly accompany infection, overexertion, broken sleep or an approaching flare.

• A gradual upward drift over weeks or months. Reduced fitness, worsening sleep, anaemia, thyroid changes and medication effects can all look like this, and none is visible on a single reading.

• A sustained change after starting or stopping a medication. Worth mentioning to whoever prescribed it.

• Failure to return to baseline long after an illness. Some lag is normal and well documented. Prolonged elevation alongside new or worsening symptoms is the version worth raising.

Some changes are not a reason to worry: one high morning after a bad night, a few beats up in winter, a bump around your period, or a jump after an unusually long day. That is the system working.

One caution: watching a number closely can tip into checking it anxiously, which costs sleep and calm without improving health. If reading overnight numbers has started to shape your mood before you have got out of bed, our piece on orthosomnia and chronic illness is about that trap.

Why does resting heart rate stay raised after an infection?

Because physiological recovery lags behind feeling better, and resting heart rate is one of the clearest places that lag shows up.

After COVID-19, continuous wearable data shows resting heart rate moving through three phases: elevated at symptom onset, falling to a minimum around 13 days after onset, rising again to a second peak around 28 days, and returning to baseline at roughly 112 days on average — with all estimates varying by disease severity (6).

A two-year prospective cohort of 4,795 people tracked through COVID-19, influenza and group A streptococcus put numbers on the gap between feeling recovered and being recovered. After moderate-to-severe COVID-19, self-reported symptoms resolved in about 12 days, but smartwatch-measured physiology took an additional 60 days to return to baseline. After mild COVID-19 the extra lag was about 7 days; after moderate-to-severe influenza about 8 days (7). The authors note that step counts and activity returned to normal as soon as people felt symptom-free — we go back to full activity well before the physiology has caught up.

For anyone with a long-term condition, the practical point is that a resting heart rate several beats above your usual for weeks after an infection is a documented pattern, not a second problem on top of the first. It is also a reason to be careful about ramping activity back up on the day symptoms stop.

Can you use resting heart rate to pace activity, and is that safe?

Many people with ME/CFS, long COVID and POTS do, and it can help — with two cautions.

The practical one: build the threshold from your own stable-period baseline. The ME/CFS meta-analysis shows why population formulas do not transfer: alongside a higher resting heart rate, maximum heart rate was substantially lower than in controls (9), so an age-formula ceiling can sit above what your body can sustain. Recheck your baseline after infections, medication changes and seasonal shifts, and agree any formal threshold with a clinician who knows your condition. Our guide to heart rate pacing covers the practicalities, and pacing for chronic illness compares the approaches.

The one about your diagnosis: exercise advice is not the same across these conditions.

• If you have post-exertional malaise — the delayed worsening after exertion typical of ME/CFS and of some long COVID — NICE guideline NG206 advises against offering any programme based on fixed incremental increases in physical activity, including graded exercise therapy, and against generalised exercise programmes designed for healthy people or other illnesses (16). Any increase is gradual, stays inside your energy limit, and is reversed if symptoms worsen. Our article on post-exertional malaise describes it in detail.

• If you have POTS without post-exertional malaise, structured exercise is standard management: in a controlled trial, three months of training improved physical and social functioning scores while a beta-blocker (propranolol) did not (18), and current reviews list supervised aerobic training among first-line non-drug measures (4).

• If you have fibromyalgia, exercise is the single therapy EULAR's revised recommendations graded "strong for" on the basis of meta-analyses (17).

Do not import the ME/CFS rule into POTS, fibromyalgia, multiple sclerosis, lupus or rheumatoid arthritis. Those conditions have their own guidelines, and in several of them avoiding activity does measurable harm. Where the two overlap, the deciding question is whether you get delayed worsening after exertion — ask your clinician which rule applies to you.

A raised morning resting heart rate is a reason to plan a lighter day, not a prediction of how the day will go. No wearable measurement has been validated to tell you in advance that a crash, flare or migraine is coming. What it gives you is a record to look back through.

What does the published evidence not show?

That a few extra beats are harmful. The differences described above are small and sit inside the normal range. Nothing in these studies says a resting heart rate of 65 instead of 61 carries a health risk because you have a chronic condition.

Causation. Almost all of this evidence is observational or case-control. Medication, reduced fitness, disrupted sleep, pain and the simple fact of being unwell travel with chronic illness and could account for part of any gap. The post-COVID wearable data makes that concrete: part of the difference was present before infection (8).

A diagnostic number. The distributions overlap almost completely. A resting heart rate of 66 is entirely typical both for people with a chronic condition and for people without one, which is why no single reading can place you in either group.

Depth, for several conditions. The migraine meta-analysis rests on seven studies and measured provoked autonomic responses, not resting rate (12). The vasomotor-symptom review could pool only three studies and found no HRV difference at all, with heterogeneity at I² = 97% (13). Where a brisk answer is not available, saying so is more useful than inventing one.

Comparability with your own numbers. Laboratory baselines, short ECG recordings and tilt-table protocols are not an overnight average from a wrist device, and figures from those settings do not transfer directly to what your app shows you.

Prediction. No published method reliably tells an individual, from resting heart rate, that a crash or flare is on its way.

Living with a raised resting heart rate: the questions people ask next

Can I still work if my resting heart rate is higher than it used to be?

A resting heart rate a few beats above your old normal is not, by itself, a reason to change what you do. What tends to matter at work is the symptom it travels with: fatigue, breathlessness on stairs, or dizziness when you stand up from a desk. If your resting heart rate has drifted up along with new symptoms, that combination deserves a medical review rather than a rearranged diary. If it has drifted up during a familiar flare, the practical move is to protect recovery time around demanding days rather than to watch the number more closely.

Is it safe to exercise when my resting heart rate is up?

It depends on your diagnosis, and the difference is not a technicality. If you have post-exertional malaise, NICE advises against fixed incremental exercise programmes, and any increase should stay inside your energy limit and be reversed if symptoms worsen (16). If you have fibromyalgia, exercise is the one therapy EULAR graded "strong for" (17). If you have POTS without post-exertional malaise, structured training improved functioning in a controlled trial (18). A raised reading on one morning is a reason to make the day lighter, not a reason to stop.

Why does my resting heart rate go up when I travel or go to events?

Several ordinary things stack up at once: shorter sleep, more upright time, heat, alcohol, dehydration and the cognitive load of a new place. Each nudges resting heart rate up on its own, and together they commonly produce several raised days that settle without intervention. If you have POTS, heat and prolonged standing are both named as things to avoid in current reviews (4), which is why airports and weddings are disproportionately expensive. A practical approach is to plan a recovery day after travel and treat those readings as expected.

Do food and alcohol change my resting heart rate?

Alcohol in particular tends to raise overnight heart rate and lower HRV on the night you drink and often the night after, which is why a morning reading after drinking is not a useful baseline reading. Large or late meals and dehydration also move the number. None of this amounts to a diet that lowers resting heart rate in chronic illness — that claim is not supported by evidence. The practical use is the reverse: knowing what moves your number lets you discount the mornings after a late dinner, a long flight or a glass of wine instead of reading them as deterioration.

My resting heart rate is higher on nights I sleep badly. Is that normal?

Yes. Sleep duration was one of the factors significantly associated with resting heart rate in the 92,457-person wearable cohort, and in that same cohort 20% of people had at least one week where their resting heart rate moved by 10 bpm or more (1). A short, broken or late night routinely shows up as a higher overnight heart rate the next morning. The thing to pay attention to is not the single raised morning after a bad night — it is a run of several days raised together, especially without an obvious sleep explanation.

How do I explain this to my family without sounding like I am obsessing over an app?

Describe the comparison rather than the number. "The normal range is huge, so a doctor sees 68 and it is fine; what I am tracking is that mine used to be 60 and is now 68 most mornings" lands better than a screenshot. It helps to say what you use it for: planning a lighter day, noticing when an infection is still working through, giving a clinician dated information. If someone objects that trackers are not medical devices, agree — which is exactly why you use the trend rather than any single reading.

Will my resting heart rate ever go back to what it was?

Sometimes, and the timescale can be long. After COVID-19, wearable data shows resting heart rate returning to baseline around 112 days on average, varying with severity (6), and after moderate-to-severe illness smartwatch-measured recovery lagged symptom resolution by about 60 extra days (7). For long-term conditions the picture is more mixed: the long COVID wearable cohort showed trajectories still differing at a year (5). A reasonable expectation is that your baseline can move more than once, and each move is worth remeasuring.

How to bring this up with your doctor

Open with one sentence that describes a change, not a value. "My resting heart rate usually runs 58 to 62. For the last three weeks it has been 66 to 70." That carries far more information than "my heart rate is 68", and it moves the conversation from reassurance to review.

Say how you measured it, and bring one page rather than an export. Overnight from a wearable, or counted manually in bed on waking, over a stated number of days — a two-week median from a consistent method is evidence; a single reading taken after the stairs to the clinic is not. On that page: your usual range, the current range, when the change started, and what else changed at the same time.

Ask these specifically. Is this change consistent with my condition, with a medication, or with something new? Should we check thyroid function, full blood count and ferritin? If I have symptoms on standing, can we do an active stand test with heart rate at 1, 3, 5 and 10 minutes? Is there a heart rate threshold I should use for pacing, given my diagnosis?

If you are dismissed because the number is "normal", try: "I understand it is within the normal range. What I am describing is a change from my own normal. Can we note that in my record and review it if it continues?" A request to track a change is harder to refuse than a request to treat a number.

And do not attribute these to your condition. Chest pain, fainting, breathlessness at rest, a heartbeat that feels irregular, a resting heart rate persistently above 100 bpm, or below 50 bpm with dizziness need medical assessment rather than another week of tracking. Chest pain, collapse, severe breathlessness or a very fast heartbeat that does not settle with rest need urgent care; call 911 in an emergency.

How Welltory helps — and what it cannot do

The limits first. Welltory is a general wellness product, not a medical device. It does not diagnose, predict, monitor, prevent, treat or mitigate POTS, long COVID, ME/CFS, fibromyalgia, migraine or any other condition, and it cannot tell you whether your resting heart rate is "normal". What it does is measure the same signals the same way every day and show them against your own history rather than a population range — the comparison this article is about.

Log what happened, not just the number. When Welltory flags a stress stretch and asks "What happened?", you can tap a suggested tag, type a few words or just talk. For a raised resting heart rate, tag the things that plausibly moved it: "bad night", "alcohol", "infection", "flare", "hot day", "long standing", "period day 1", "new medication", "travel day". You can also add a note any time with the plus icon; it goes into your Journal.

Look at the one to three days before, not only the morning itself. Put resting heart rate, HRV, sleep analysis, stress minutes and Battery beside your tagged notes for the 72 hours before a raised stretch — resting heart rate moves slowly, so the explanation for Thursday usually sits in Monday to Wednesday. With the morning phone-camera (PPG) reading alone you have spot measurements rather than continuous data; our article on how accurate HRV from a phone camera is covers what it can and cannot do. Heartbeat Report is designed for morning readings taken under the same conditions each time.

Check My Patterns after two to three weeks of tagging. My Patterns collects the tags you add to stress and rest stretches on the Today screen (iOS, with an Apple Watch or Oura — a phone-camera reading alone does not create these stretches). Patterns start at around 7 tagged events, and insights typically need about 7 occurrences of a tag in the current month plus history from the month before. It shows which tagged situations come with stressful stretches, which tags do not happen often but hit your body hard, trends by day of week, heart rate during those episodes, and every time a tag occurred.

Build a log for your doctor. The Journal holds your measurements, tags, notes and how you felt. For a longer record, export a CSV from the web app (Dashboard → choose a chart → Export). The free version keeps 30 days of data, so export what you want to keep.

Any patterns you find are associations to discuss with your doctor — not proof of a cause, and not a warning system.

Where to find other people in the same situation. Welltory runs a paid, moderated community called Energy Lab for women aged 18 to 65 living with energy-limiting conditions — ME/CFS, long COVID, fibromyalgia, POTS, MCAS and similar. It runs alongside the app: you keep collecting your own data, and the Lab is where people learn to read it together, with a medical board answering the science. It is education and peer support, not medical care, it does not replace your clinician, and there is a 14-day money-back guarantee on a first purchase.

How we made it

Made with AI tools, then edited and fact-checked by the Welltory team. See our Editorial & AI policy.

Data analysis by Jane Smorodnikova, co-founder of Welltory and the person who built the methodology behind how we read physiological data.

Written by Tatsiana Yashyna.

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