Is a low resting heart rate good or bad?

It depends. A rate below 60 is often a sign of good aerobic fitness, and athletes commonly sit in the 40s or 50s. But a low number is not automatically good: medications such as beta-blockers also lower the rate, and a slow rate paired with symptoms like dizziness or fainting can need attention. Resting heart rate is one signal among many.

What is a dangerous resting heart rate?

There is no single cutoff that defines danger, because context matters. As general guidance, a resting rate that is persistently below 60 with symptoms, or persistently above 100 at rest, is worth raising with a clinician, especially alongside palpitations, dizziness, fainting, shortness of breath, or chest pain. This is a red-flag prompt to seek advice, not a self-diagnosis.

How do I measure my resting heart rate?

The simplest way is to find the pulse on the inner wrist with the index and middle fingers, then count the beats over one full minute while sitting or lying down, calm and at rest. The American Heart Association and Cleveland Clinic both describe this wrist method. Many fitness trackers and smartwatches also estimate resting heart rate automatically.

Can exercise lower my resting heart rate?

Regular aerobic activity is associated with a lower resting heart rate over time, because a fitter heart moves blood more efficiently and can do the same work with fewer beats at rest. The size of the change varies between people, and it builds gradually rather than overnight.

Does a high resting heart rate mean I have a problem?

Not necessarily. The American Heart Association notes that a high reading is not always a sign of a problem and can be temporary. In studies of large populations a higher resting heart rate is associated with higher risk over time, but that is a group-level association, not a prediction about any individual. A rate that is persistently high at rest, particularly with symptoms, is worth discussing with a clinician.

Health

Resting Heart Rate: What Is Normal, and What It Can Indicate

Resting heart rate is the number of times the heart beats per minute at rest. For most adults the normal range is 60 to 100 beats per minute. Here is what that number means, why a lower rate is often a sign of fitness but not always, and when an unusual reading is worth raising with a clinician.

Written by Michael Harley, Independent Health & Nutrition ResearcherLast reviewed: Jun 7, 2026

Resting heart rate is the number of times the heart beats per minute when the body is at rest: sitting or lying down, calm, and not recently active. It is one of the simplest measurements in health, and it can be taken without any equipment by finding the pulse and counting the beats over a minute. Many fitness trackers and smartwatches now estimate it automatically overnight.

This guide is general and educational. It explains what a normal resting heart rate is, why a lower number is often a sign of fitness but not always a good thing, what nudges the number up or down day to day, and the general signs that make a reading worth discussing with a clinician. It does not diagnose any condition or replace a medical assessment.

The essentials at a glance

For most adults a normal resting heart rate is 60 to 100 beats per minute, measured while calm and at rest (American Heart Association).
A rate below 60 is called bradycardia and a rate above 100 is called tachycardia, but neither automatically signals a problem (American Heart Association).
A lower resting rate is often a sign of good aerobic fitness, yet a low number is not automatically good: medications such as beta-blockers also lower it, and a slow rate paired with symptoms can need attention.
Resting heart rate shifts with fitness, emotions, sleep, body weight, caffeine, dehydration, illness or fever, and some medications, so a single reading is a snapshot, not a verdict.
In studies of large populations, a higher resting heart rate is associated with a higher risk of death over time, but this is a group-level association and not a prediction about any one person (Zhang et al., 2016).
A resting rate that is persistently unusual, especially alongside palpitations, dizziness, fainting, shortness of breath, or chest pain, is worth raising with a clinician.

What is a normal resting heart rate

The American Heart Association describes a normal resting heart rate for most adults as between 60 and 100 beats per minute, measured while sitting or lying down, calm, and feeling well. A reading should be taken when the body is genuinely at rest, since recent activity, stress, or caffeine can push it temporarily higher.

Clinically, a resting rate below 60 beats per minute is called bradycardia, and a rate above 100 is called tachycardia. These are descriptive labels for where a number falls, not diagnoses on their own. The American Heart Association notes that a high reading is not always a sign of a problem and may reflect a temporary condition, and that a low reading does not always signal a medical issue either.

Lower can be fitter, but not always

A resting heart rate below 60 is common in well-conditioned people. The American Heart Association explains that a lower rate is common for athletes because a well-trained heart muscle is in good condition and does not need to work as hard to circulate blood. Cleveland Clinic notes that resting rates in the 40s or 50s can be normal for athletes.

The important caveat is that a low number is not automatically a good thing. The same sources note that a heart rate below 60 can also be the result of taking a medication such as a beta-blocker or a calcium channel blocker, which slow the heart by design. And a slow rate that comes with symptoms such as fatigue, dizziness, or fainting is a different situation from the slow, strong pulse of a trained athlete. Resting heart rate is one signal among many, best read in the context of how a person feels and their overall health, rather than as a standalone score.

What raises or lowers resting heart rate

Resting heart rate is not a fixed number. Cleveland Clinic lists emotions, body weight, fitness level, and sleep quality among the everyday factors that affect it. Caffeine, dehydration, and an illness or fever are common short-term influences that can raise the rate, while improving aerobic fitness tends to lower it over time. Some medications change it directly: beta-blockers and calcium channel blockers lower the rate, which is part of why they are prescribed.

Because so many ordinary factors move the number, a single high or low reading rarely means much on its own. A trend watched over days or weeks, taken under similar calm conditions, is more informative than one isolated measurement.

Can training lower it

Regular aerobic activity is associated with a lower resting heart rate, which is why endurance athletes often sit well below 60 beats per minute. The mechanism is straightforward: as the heart becomes more efficient at moving blood, it can do the same work with fewer beats at rest. This connects resting heart rate to the broader picture of aerobic fitness covered in the guide on why cardiorespiratory fitness may be one of the strongest predictors of a long life.

That does not mean a number can be willed down on command, and the size of the change varies from person to person. But building a consistent aerobic base, including simply accumulating more daily movement as described in the guide on how many steps per day support health, is the kind of activity associated over time with a lower resting rate and better cardiovascular health.

Frequently asked questions

What is a normal resting heart rate?: For most adults the American Heart Association puts the normal range at 60 to 100 beats per minute, measured while sitting or lying down, calm, and feeling well. Children and very fit adults can fall outside this range for ordinary reasons.
Is a low resting heart rate good or bad?: It depends. A rate below 60 is often a sign of good aerobic fitness, and athletes commonly sit in the 40s or 50s. But a low number is not automatically good: medications such as beta-blockers also lower the rate, and a slow rate paired with symptoms like dizziness or fainting can need attention. Resting heart rate is one signal among many.
What is a dangerous resting heart rate?: There is no single cutoff that defines danger, because context matters. As general guidance, a resting rate that is persistently below 60 with symptoms, or persistently above 100 at rest, is worth raising with a clinician, especially alongside palpitations, dizziness, fainting, shortness of breath, or chest pain. This is a red-flag prompt to seek advice, not a self-diagnosis.
How do I measure my resting heart rate?: The simplest way is to find the pulse on the inner wrist with the index and middle fingers, then count the beats over one full minute while sitting or lying down, calm and at rest. The American Heart Association and Cleveland Clinic both describe this wrist method. Many fitness trackers and smartwatches also estimate resting heart rate automatically.
Can exercise lower my resting heart rate?: Regular aerobic activity is associated with a lower resting heart rate over time, because a fitter heart moves blood more efficiently and can do the same work with fewer beats at rest. The size of the change varies between people, and it builds gradually rather than overnight.
Does a high resting heart rate mean I have a problem?: Not necessarily. The American Heart Association notes that a high reading is not always a sign of a problem and can be temporary. In studies of large populations a higher resting heart rate is associated with higher risk over time, but that is a group-level association, not a prediction about any individual. A rate that is persistently high at rest, particularly with symptoms, is worth discussing with a clinician.

References

All About Heart Rate (Pulse) · American Heart Association. Accessed 2026-06-07.
Resting heart rate and all-cause and cardiovascular mortality in the general population: a meta-analysis (Zhang, Shen & Qi) · CMAJ (Canadian Medical Association Journal), 2016. Accessed 2026-06-07.
Heart Rate: Normal Rates & What To Know · Cleveland Clinic. Accessed 2026-06-07.