Your resting heart rate is one of the simplest numbers your body offers. Most adults now see it on a watch or a fitness tracker every day.
Yet many people do not know what the range means or when a reading should prompt a call to the doctor.
For adults, a normal resting heart rate sits between 60 and 100 beats per minute, according to Cleveland Clinic.
That range applies to anyone 18 and older.
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Children have a higher normal range, and it drops through childhood as the heart grows.
What counts as normal by age
Cleveland Clinic breaks the ranges down like this.
Age group | Normal resting heart rate Also read: What your blood pressure does while you sleep may matter more than your daytime reading |
|---|---|
Newborn (birth to 4 weeks) | 100-205 bpm |
Infant (4 weeks to 1 year) | 100-180 bpm Also read: A daily probiotic may lower the risk of death for babies born too early |
Toddler (1-3 years) | 98-140 bpm |
Preschool (3-5 years) | 80-120 bpm Also read: How drinking too much water can affect your kidneys |
School age (5-12 years) | 75-118 bpm |
Adolescent (13-17 years) | 60-100 bpm Also read: New study: The brain responds to every single breath |
Adult (18 and older) | 60-100 bpm |
For adults, sex on its own does not shift the accepted range. Physical conditioning does.
Endurance athletes often sit well below 60, and readings near 40 are not unusual for the highly trained.
Where within normal your heart likes to be
The 60 to 100 window is wide, and the lower half looks kinder to the heart.
A meta-analysis of 46 prospective studies covering more than 1.2 million people appeared in the Canadian Medical Association Journal in 2016.
Each 10 bpm rise in resting heart rate was tied to a 9 percent higher risk of dying from any cause.
A resting rate above 80 bpm carried a 45 percent higher all-cause mortality risk than the lowest category.
A larger 2017 dose-response meta-analysis by Aune and colleagues pointed the same way.
Each 10 bpm rise was tied to a 7 percent higher risk of coronary heart disease. Heart failure risk climbed 18 percent.
A study of 502,534 UK Biobank adults confirms the pattern in a modern population.
Each 10 bpm rise was tied to a 22 percent higher all-cause mortality risk in men and a 19 percent higher risk in women.
Together the numbers frame the resting pulse as one of the strongest signals of long-term risk you can measure at home.
What pushes the number up
Deconditioning is the most common cause. If you sit most of the day, your heart has to pump more often to move the same blood.
Stress, poor sleep, dehydration, caffeine, nicotine, and some cold medications also push the rate up short term.
Chronic causes include an overactive thyroid, anemia, fever, and certain heart rhythm problems.
What pushes the number down
Fitness is the friendly reason. A trained heart pushes more blood per beat and beats less often at rest.
A slow rate can also come from bradycardia, meaning a rhythm too slow from problems in the heart's electrical system.
Beta-blocker medications and an underactive thyroid also lower the rate.
When to talk to a doctor
The American Heart Association advises anyone worried about a slow heart rate to make a check-up appointment.
Call emergency services if you faint, have chest pain lasting more than a few minutes, or struggle to breathe.
A resting rate that consistently sits above 100 bpm without a clear reason also warrants a visit.
Watch for palpitations, chest discomfort, or shortness of breath.
Track the trend over weeks, not one reading. A morning number that starts creeping up by 5 to 10 bpm across a normal week can flag illness, overtraining, dehydration, or something else worth a call to your clinic.
This article is made and published by Ida-Marie Palm Varbæk, who may have used AI in the preparation.