Resting Heart Rate: What Is Normal and What It Says About Your Health

Quick answer

Your resting heart rate (RHR) is the number of times your heart beats per minute when you are awake, calm and have not exerted yourself recently. For most healthy adults the NHS gives a normal range of 60 to 100 beats per minute (bpm).

That range is wide on purpose. A sedentary office worker and a club runner can both be perfectly healthy with very different numbers — the runner might rest at 48 bpm, the office worker at 78. What matters more than the single figure is whether it is steady over time, whether it fits your fitness level, and whether any change comes with symptoms.

How to measure it properly

A resting heart rate only means something if it is genuinely taken at rest. Coffee, a brisk walk to the kitchen, stress or a recent meal can all push the number up by 10–20 bpm.

The most reliable method:

1. Rest first. Sit or lie quietly for at least five minutes. The gold-standard reading is the moment you wake up, before you get out of bed.
2. Find your pulse. Place two fingers (not your thumb, which has its own pulse) on the inside of your wrist below the base of the thumb, or lightly on the side of your neck just below the jaw.
3. Count. Count the beats for a full 60 seconds. If you prefer, count for 30 seconds and double it — slightly less accurate but fine for a quick check.
4. Repeat. Take it over a few mornings and use the average. One-off readings vary a lot.

Wrist-worn devices (Apple Watch, Fitbit, Garmin, Oura ring and similar) measure this automatically overnight and are reasonably accurate for resting and steady-state readings, though they struggle with very high intensity or irregular rhythms. They are useful mainly for spotting trends in your own numbers rather than as a clinical instrument.

Normal resting heart rate by age

There is no single official UK table that splits "normal" by adult age, because the NHS 60–100 bpm range applies across adulthood. Resting rate does tend to drift slightly with age and is strongly shaped by fitness, but the following is a reasonable real-world guide for healthy adults:

Children naturally run faster — newborns can sit around 120–160 bpm — and the rate settles down through childhood. For adults, age is a far weaker predictor than fitness, body weight, medication and stress.

What your resting rate says about fitness

The heart is a muscle, and like any muscle it gets stronger and more efficient with training. A fitter heart pumps more blood per beat (a larger "stroke volume"), so it needs fewer beats to circulate the same amount of blood at rest. That is why endurance athletes can have remarkably low resting rates — figures in the 30s and 40s are documented in elite cyclists and runners.

As a rough fitness read-across for adults:

These bands are interpretive, not diagnostic. The most useful thing you can do is track your own number over months: a steadily falling resting rate as you build aerobic fitness is one of the clearest signs that training is working.

If you are using exercise as part of a weight-management plan, it helps to pair heart-rate tracking with sensible energy targets — our calorie calculator estimates your maintenance calories using the Mifflin-St Jeor equation, and our BMI calculator puts your weight into the NHS categories as a starting screen.

What pushes resting heart rate up

A higher-than-usual resting rate is rarely a single dramatic event. More often it is the sum of everyday factors:

• Caffeine and nicotine — both are stimulants and can raise the rate for hours.
• Stress and anxiety — adrenaline speeds the heart; chronic stress keeps it elevated.
• Poor sleep — one bad night reliably nudges next-morning RHR upwards.
• Dehydration — less blood volume means the heart works harder.
• Alcohol — raises overnight and next-morning heart rate, even at modest intake.
• Illness or infection — fever and the immune response speed the heart; a sudden jump can be an early sign you are coming down with something.
• Deconditioning — losing fitness through inactivity lets the resting rate creep back up.
• Some medications — certain decongestants, asthma inhalers and thyroid medication can raise it; always check the leaflet.

This is why wearables that flag a "resting heart rate trending up" can be genuinely useful — a sustained rise of 5–10 bpm over a couple of weeks, with no change in training, is a flag to check your sleep, stress and alcohol, or to consider whether you are getting ill.

When a low rate is fine — and when it isn't

A resting rate below 60 bpm is called bradycardia. In fit adults and during sleep it is completely normal and a sign of an efficient heart. Many healthy people will never have a problem with it.

It becomes a concern only when the slow rate means the heart isn't pumping enough blood to meet the body's needs, which shows up as symptoms:

• dizziness or light-headedness
• fainting or near-fainting
• unusual breathlessness
• chest discomfort
• extreme tiredness or confusion

A low rate with any of these symptoms should be checked by a GP, and severe symptoms (collapse, chest pain) warrant calling 999. Causes can include certain heart-rhythm problems, an underactive thyroid, or the side-effects of medicines such as beta-blockers.

When to worry about a high or irregular rate

Contact a GP if your resting heart rate is:

• persistently over 100 bpm when calm and rested, with no obvious cause;
• rising over weeks with no change in lifestyle or training;
• irregular, skipping or fluttering — a sensation of "missed" or extra beats.

An irregular pulse matters because it can be a sign of atrial fibrillation (AF), the most common heart-rhythm disorder in the UK. AF raises the risk of stroke but is very treatable once identified, which is why the NHS encourages people to check their own pulse and why many GP surgeries and pharmacies offer quick pulse checks. If you ever have an irregular heartbeat together with chest pain, severe breathlessness or fainting, treat it as an emergency and call 999.

Most of the time, a one-off fast reading is nothing — you had a coffee, climbed the stairs, or felt anxious before taking it. It is the persistent pattern, or the combination with symptoms, that should prompt a conversation with a clinician.

How to lower your resting heart rate

If your resting rate sits at the higher end of normal and you want to bring it down, the levers are the same ones that improve general cardiovascular health:

• Aerobic exercise. The single most effective change. The NHS recommends at least 150 minutes of moderate activity (brisk walking, cycling, swimming) per week. Over weeks to months this reliably lowers resting heart rate.
• Better sleep. Aim for a consistent 7–9 hours. Sleep quality has an outsized effect on next-day RHR.
• Manage stress. Breathing exercises, time outdoors and reducing chronic stress all help.
• Cut back caffeine and alcohol, and stop smoking — nicotine is a direct stimulant.
• Stay hydrated and maintain a healthy weight; carrying excess weight makes the heart work harder at rest. Our ideal weight calculator gives a sensible target range to aim for.

These changes are mutually reinforcing — improving sleep makes exercise easier, exercise improves sleep, and both reduce stress. A falling resting heart rate over a few months is often the first measurable sign that the package is working.

A note on heart rate during exercise

Resting heart rate is different from your maximum and target training heart rates. A common rule-of-thumb estimate for maximum heart rate is 220 minus your age — so roughly 180 bpm for a 40-year-old — though this is only an approximation with wide individual variation. Moderate-intensity exercise is generally taken as 50–70% of that maximum, and vigorous exercise as 70–85%.

You do not need to train by heart rate to be healthy. For most people, "moderate" simply means working hard enough to breathe faster and feel warmer while still able to talk — the NHS "talk test" — and "vigorous" means being too out of breath to say more than a few words. Heart-rate zones are a useful refinement for those who enjoy structured training, not a requirement for good health.

The bottom line

For most adults, a resting heart rate of 60–100 bpm is normal, and lower (within the 40s–50s) usually signals good fitness rather than a problem. The single number matters less than the trend: a steady, slightly falling resting rate as you build fitness is reassuring, while a persistent rise, a consistently fast rate, or any irregular beat is worth a conversation with your GP — especially if it comes with dizziness, breathlessness, chest pain or fainting.

Check it properly (rested, ideally first thing in the morning), track it over time rather than fixating on one reading, and use it as one input among several alongside how you feel day to day.

Frequently asked questions

What is a normal resting heart rate for adults? For most healthy adults the NHS gives a normal resting range of 60–100 beats per minute. Fit and active people are often in the 40s or 50s, which is normal and usually a sign of good cardiovascular fitness.

How do I measure my resting heart rate? Sit quietly for at least five minutes, find your pulse at your wrist or neck, and count the beats for a full 60 seconds (or 30 seconds doubled). The most reliable reading is taken first thing in the morning before getting out of bed.

Is a resting heart rate below 60 dangerous? Not usually. A rate below 60 (bradycardia) is common and harmless in fit people and during sleep. It is only a concern if accompanied by dizziness, fainting, breathlessness or chest pain.

When should I see a GP about my heart rate? Speak to a GP if your resting rate is persistently above 100, below 60 with symptoms, suddenly changes for no clear reason, or feels irregular. An irregular pulse can indicate atrial fibrillation, which is treatable but worth checking.

Sources

• NHS: What's a normal pulse rate?
• NHS: How to check your pulse
• NHS: Physical activity guidelines for adults
• British Heart Foundation: Your heart rate