2016CMAJ
Zhang et al.
46 studies, 1.2M+ people
Every 10 bpm higher resting heart rate raised the risk of death by 9% and heart disease death by 8%. Risk climbed steadily above about 60 bpm.
Find on PubMed ↗Research library · Heart & fitness
Resting heart rate: how hard your heart works at rest
Your pulse when you're fully relaxed. A lower resting heart rate usually means a stronger heart that moves more blood with each beat. It's free to measure and shows changes in fitness, stress and illness within days.
Good evidenceUpdated Oct 2026 · 3 new studies+9%risk of death for every extra 10 beats per minuteZhang 2016, CMAJ, 46 studies, 1.2M+ people
3×risk of death with a resting pulse above 90 vs 50 or belowJensen 2013, Heart, 16-year follow-up
+90%heart disease death risk when resting pulse rose from under 70 to over 85 over 10 yearsNauman 2011, JAMA, 29,325 people
01
The basics
What your resting pulse tells you
Resting heart rate (RHR) is how many times your heart beats in a minute when you are completely at rest, ideally just after waking. Most adults sit between 60 and 100, but in large studies people in the 50s and low 60s do best. Trained endurance athletes are often in the 40s.
Two things set it. The first is stroke volume: a fitter heart pumps more blood with each squeeze, so it needs fewer beats. The second is your nervous system: the vagus nerve acts like a brake on the heart. When you're rested and relaxed the brake is on; stress, illness, alcohol and poor sleep take it off.
That's why RHR is a great daily signal. A rise of 5 or more beats above your usual morning value often shows up a day or two before you feel ill or overtrained.
Why a fit heart beats slower
Both hearts move about 5 litres of blood a minute at rest. The trained heart does it with fewer, bigger beats.
02
How it works
Why training lowers it
1
Regular cardio
Repeated aerobic work asks the heart to pump more blood for long periods.
2
Bigger, stronger heart
The main pumping chamber gets larger and more elastic, so it fills and empties more completely.
3
More blood per beat
Stroke volume rises, so the same amount of blood moves with fewer beats.
4
Calmer nervous system
The vagus nerve's braking effect strengthens, slowing the resting rhythm further.
03
Measure it
How to measure it
- By hand: right after waking, before getting up, find your pulse on your wrist or neck and count for 60 seconds.
- Wearables: most watches and rings record your lowest or average heart rate overnight, which is a very good resting value.
- Look at the trend: use your 7-day average. Single days jump around with sleep, drinks and stress.
Try your number
AthleticVery goodAverageHigherHigh
40100
Bands for adults at rest. A very low pulse with dizziness or fainting needs a doctor's check.
04
What the research says
The key studies
2013Heart
Jensen et al.
2,798 men, 16 years
Even among fit men, those with a resting pulse over 90 had about 3 times the death risk of those at 50 or below.
Find on PubMed ↗2011JAMA
Nauman et al.
29,325 adults (HUNT, Norway)
People whose resting pulse rose from under 70 to over 85 across 10 years had 90% higher risk of dying from heart disease than those who stayed under 70.
Find on PubMed ↗2007Lancet
Fox et al.
Review
Heart rate is an independent risk factor: a faster heart has less time to fill and to feed its own muscle between beats.
Find on PubMed ↗05
New in 2025–26
What the newest research adds
A huge 2025 study puts a resting pulse of 80 to 99 beats per minute on a par with high blood pressure as a warning sign, and it is just as common in people in their twenties as in their seventies. How fast your heart rate falls after exercise may tell you even more.
The new studies, in order
Every study added to this page since January 2025. Green rings are the strongest evidence: large trials or meta-analyses.
A fast pulse is common even in young adults
Wen et al., 2025, 692,217 adults. Share with a resting pulse of 80 to 99, compared with the share with high blood pressure, by age.
NewMar 2025Prog Cardiovasc Dis
Wen et al.
692,217 adults in Taiwan and Norway, about 25 years
People with a resting pulse of 80 to 99 and normal blood pressure died at similar rates to people with high blood pressure and a pulse of 60 to 69. A pulse in this range was found in 21% of people in their twenties, while high blood pressure affected only about 5% of them.
Good evidenceRead the source ↗
NewJan 2025Eur J Prev Cardiol
Jou et al.
9,917 adults, 8.6 years
A slow drop in heart rate in the first minute after an exercise test was linked to a 70% higher risk of death. The link held even in people with normal exercise capacity. Published online September 2024.
Good evidenceRead the source ↗
NewNov 2025Sci Rep
Wei et al.
46,348 UK Biobank adults, 12.6 years
People whose heart rate recovered quickly after exercise had about 25% lower risk of dementia. Resting heart rate on its own showed no link with dementia, so recovery may be the more useful number for the brain.
Early evidenceRead the source ↗
What this changes for you
Don't shrug off a resting pulse in the 80s, even in your 20s or 30s: it carries similar risk to high blood pressure. Check how fast your heart rate drops in the first minute after hard effort too; a quick fall is a good sign.
06
Take action
How to lower it
Most people can drop their resting pulse by 5–10 beats within a few months.
- 1
Easy cardio most days
30–60 minutes of Zone 2 (conversation pace). This is the strongest lever.
- 2
Sleep 7–9 hours
Short or late sleep keeps the next morning's pulse higher.
- 3
Watch alcohol
Even 1–2 drinks can raise your overnight heart rate by several beats.
- 4
Stay hydrated
Less blood volume means the heart has to beat faster.
- 5
Breathe slowly
A few minutes of slow breathing turns up the vagus nerve's calming effect.
07
Myth or fact
Common myths, checked
✕ Myth60–100 bpm is all normal, so it doesn't matter.
✓ FactThat range is 'normal' for diagnosing illness, but risk rises steadily within it. 55 is better than 85.
✕ MythLower is always better.
✓ FactA very slow pulse with dizziness, breathlessness or fainting can be a heart rhythm problem.
✕ MythOne high morning means something is wrong.
✓ FactBad sleep, a late meal or one drink can do it. Look at a week's trend.
08
Questions
Frequently asked
When should I see a doctor?
If your resting pulse is often above 100, below 40 with symptoms, or feels irregular or fluttery.
Does coffee raise it?
A little, for a few hours, in people not used to it. Regular coffee drinkers barely notice it.
Do medications change it?
Yes. Beta-blockers lower it; thyroid medicine, some asthma inhalers and decongestants can raise it.
09
Test yourself
True, partly true or myth?
Read each claim and pick an answer: the card flips to show the verdict and why. Not sure? Use “Just reveal”.
Card № 01True or myth?
A resting heart rate that creeps up over several days can be an early sign of illness or overtraining.
True
A resting heart rate that creeps up over several days can be an early sign of illness or overtraining.
Wearable studies show RHR often rises a few beats before symptoms of infection appear, and after poor sleep, alcohol or hard training.
Card № 02True or myth?
A resting heart rate of 50 always means something is wrong.
Myth
A resting heart rate of 50 always means something is wrong.
Fit people often sit in the 40s or 50s because each beat moves more blood. It's only a concern if you also feel dizzy, faint or breathless.
Card № 03True or myth?
Measuring right after waking, before getting up, gives the most consistent reading.
True
Measuring right after waking, before getting up, gives the most consistent reading.
Caffeine, standing, food and stress all push heart rate up. The same quiet moment each day makes trends easy to see.
Card № 04True or myth?
Normal resting heart rate is 60 to 100 beats a minute.
Partly true
Normal resting heart rate is 60 to 100 beats a minute.
That is the textbook range, but large studies find risk starts rising above about 70–80, even inside the 'normal' band.
Card № 05True or myth?
Regular aerobic exercise usually lowers resting heart rate.
True
Regular aerobic exercise usually lowers resting heart rate.
Training enlarges the heart's stroke volume, so it needs fewer beats to move the same blood. Drops of 5–10 bpm are common.
Card № 06True or myth?
Your resting heart rate is fixed by your genes.
Myth
Your resting heart rate is fixed by your genes.
Genes set a starting point, but fitness, sleep, alcohol, stress, illness and medicines all move it within weeks.
Card № 07True or myth?
One evening of drinking can raise your overnight heart rate.
True
One evening of drinking can raise your overnight heart rate.
Alcohol speeds the heart and lowers HRV during sleep; many wearable users see it plainly the next morning.
Card № 08True or myth?
A lower resting heart rate is always better.
Partly true
A lower resting heart rate is always better.
Lower is usually a sign of fitness, but a very slow rate with symptoms, or caused by medicine or heart block, needs checking.
Card № 09True or myth?
Dehydration and heat can raise your resting heart rate.
True
Dehydration and heat can raise your resting heart rate.
With less fluid in the blood vessels, the heart beats faster to keep blood pressure up.
Card № 10True or myth?
You need a gadget to measure resting heart rate.
Myth
You need a gadget to measure resting heart rate.
Two fingers on your wrist or neck, count for 30 seconds and double it. Repeat on a few mornings and take the average.
Nothing here yet. Try another filter.
10
Sources
References and related topics
- Zhang et al. (2016). CMAJ. 46 studies, 1.2M+ people. PubMed ↗
- Jensen et al. (2013). Heart. 2,798 men, 16 years. PubMed ↗
- Nauman et al. (2011). JAMA. 29,325 adults (HUNT, Norway). PubMed ↗
- Fox et al. (2007). Lancet. Review. PubMed ↗
- Wen et al. (2025). Prog Cardiovasc Dis. 692,217 adults in Taiwan and Norway, about 25 years. Source ↗
- Jou et al. (2025). Eur J Prev Cardiol. 9,917 adults, 8.6 years. Source ↗
- Wei et al. (2025). Sci Rep. 46,348 UK Biobank adults, 12.6 years. Source ↗