What is a healthy resting heart rate?
A resting heart rate between 60 and 80 beats per minute is considered generally normal, but lower is fine for active people, and above 78 the risk begins to rise measurably. Exercise regularly, stop smoking, and do not let your heart rate creep up over the years.
A resting heart rate of 60 to 80 beats per minute is generally considered normal, but what is 'healthy' depends strongly on the individual. Well-trained athletes regularly fall below 60, and for them that is perfectly normal. Resting heart rate also decreases slightly as you get older.
Where things get interesting is the upper limit. A resting heart rate of 78 beats per minute or higher turns out to be an independent warning sign: in research, people with such a higher heart rate had more than three and a half times the risk of dying from cardiovascular disease compared with people with a lower heart rate. That association held independently of other risk factors. In women, the effect appears slightly weaker than in men.
Lifestyle has a clear influence. Smoking raises resting heart rate, and that effect is stronger at more than twenty cigarettes per day. Regular physical activity works in the opposite direction: intensive physical training lowers resting heart rate. People with an overall healthy profile, meaning not smoking, sufficient exercise, healthy weight, good blood pressure and blood values, had seven times lower odds of a resting heart rate of 80 or higher. That is a strong signal, although the association does not demonstrate a direct cause.
In people with type 2 diabetes, a gradual rise in resting heart rate over the years is also a warning sign: those who showed a large increase had more than three times the risk of a cardiovascular event or death. This underlines that the trend over time matters too, not just the number at a single point in time.
A small study found that almost half of normal-weight young adults had a resting heart rate between 90 and 100 beats per minute. That is a striking finding, but it comes from a single study with a limited sample size. Do not draw general conclusions from it; it does show that elevated heart rates occur in young, lean people as well.
This answer is based on multiple human studies, including a large study and a review of earlier research, and one small observational study in young adults. The evidence is reasonably consistent regarding the upper limit and lifestyle influences, but the associations are statistical in nature: they show correlation, not direct cause and effect. Demonstrating cause and effect here is difficult because you cannot simply assign a heart rate to people at random.
What your resting heart rate says about your life expectancy
A higher resting heart rate is clearly and consistently linked to a higher risk of premature death, even after taking other risk factors into account. If your resting heart rate is regularly above 80, talk to your doctor about it, especially if you also have high blood pressure.
Does your resting heart rate say anything about how fast you are ageing?
A structurally high resting heart rate, certainly above 80 to 90 beats per minute, is associated with a clearly higher risk of premature death. Exercising to lower your resting heart rate is worthwhile, but a very low heart rate at an older age is not always a good sign: if in doubt, discuss it with your doctor.
Does my heart rate variability (HRV) tell me anything about my health?
A higher HRV is associated with better health and greater resilience. Slow breathing is the most accessible and best-supported way to work on this yourself.
Is the Mediterranean diet really good for your heart, and why?
For people at increased heart risk, the Mediterranean diet is the best-supported dietary choice currently available. Both large studies in people and dozens of population studies confirm a lower risk of heart attack and stroke.
What is a healthy cholesterol level and when should I be concerned?
A normal LDL value does not give a complete picture of your cardiovascular risk. Ask your doctor about your remnant cholesterol as well, especially if cardiovascular disease or Alzheimer's disease runs in your family.
How healthy are my blood vessels / what is my vascular age?
For a first impression of your vascular health, an ApoB blood test is the simplest and most accessible step; a CAC scan adds the most value when your risk remains unclear after blood testing.