A normal resting heart rate for adults falls between 60 and 100 beats per minute (bpm). That’s the speed your heart beats when you’re sitting or lying down, calm, and feeling well. Where you land within that range depends on your fitness level, age, medications, and several other factors. The number matters more than most people realize: each 10 bpm increase in resting heart rate is linked to roughly a 16% higher risk of dying from any cause over long follow-up periods.
How to Measure Your Resting Heart Rate
The most reliable time to check is first thing in the morning, before you get out of bed. If that’s not practical, sit quietly for at least five minutes before measuring. Avoid checking within one to two hours after exercise or a stressful event, and wait at least an hour after caffeine.
Place your index and middle fingers on the inside of your wrist, just below the base of your thumb. You should feel a steady pulse from the radial artery. Alternatively, place those same two fingers on the side of your neck, next to your windpipe, to feel the carotid artery. Count the beats for 15 seconds and multiply by four. If you want more accuracy, count for 30 seconds and multiply by two.
Smartwatches and fitness trackers use optical sensors that detect the expansion of your arteries with infrared light. These are generally accurate enough for personal tracking, but they can be thrown off by certain health conditions, medications, or poor wrist contact. They’re useful for spotting trends over time, though they shouldn’t replace medical-grade devices if you’re monitoring a heart condition.
Normal Ranges by Age
The 60 to 100 bpm range applies to anyone 13 and older. Children have faster hearts. Newborns typically beat at 100 to 205 bpm, infants 100 to 180, toddlers 98 to 140, preschoolers 80 to 120, and school-age children 75 to 118. These ranges are wide because a child’s heart rate responds dramatically to activity, fever, and crying.
Well-trained athletes often have resting heart rates in the 40s or 50s. That’s not a sign of a problem. Consistent aerobic exercise strengthens the heart muscle so it pumps more blood per beat, meaning it doesn’t need to beat as often at rest. If you’re not particularly active and your rate sits in the low 50s or below, that’s worth mentioning to a doctor.
What Pushes Your Heart Rate Up or Down
Caffeine is one of the most common culprits behind a temporarily elevated reading. It blocks a chemical that normally helps keep your heart rate steady and can trigger palpitations in some people. Dehydration, emotional stress, poor sleep, and high ambient temperatures all push the number up as well. Even standing for a long time before measuring can skew the result.
Several classes of medication lower resting heart rate significantly. Beta-blockers, commonly prescribed for high blood pressure and anxiety, are the most familiar example. Certain blood pressure drugs like diltiazem and verapamil do the same. On the other end, stimulant medications for ADHD, some asthma inhalers, and even certain antidepressants can raise it. If you’ve started a new medication and notice a change in your resting heart rate, that shift is likely pharmacological rather than a sign of a new problem.
Why Your Resting Heart Rate Matters
Resting heart rate is one of the simplest windows into cardiovascular health. A large study following nearly 2,800 men over 16 years found a striking dose-response pattern: compared to men with a resting heart rate at or below 50 bpm, those in the 51 to 80 range had a 40 to 50% higher risk of death from any cause. A resting rate of 81 to 90 doubled the risk. Above 90, the risk tripled. These associations held even after accounting for smoking, fitness level, and other health factors.
That doesn’t mean a reading of 75 is dangerous. The 60 to 100 range is considered medically normal for good reason. But within that range, lower tends to be better, because it usually reflects a stronger, more efficient heart. Tracking your number over months and years gives you a useful signal. A resting heart rate that gradually climbs without an obvious explanation, like a new medication or prolonged stress, is worth paying attention to.
When a Heart Rate Is Too Low or Too High
A resting heart rate below 60 bpm is called bradycardia. In fit individuals this is perfectly normal and expected. In someone who isn’t active, it can signal a problem with the heart’s electrical system and may cause dizziness, fatigue, or fainting. The severity depends entirely on symptoms: a rate of 55 with no symptoms is very different from a rate of 55 with lightheadedness.
A resting rate above 100 bpm is called tachycardia. Temporary spikes from caffeine, anxiety, or illness don’t count. A consistently elevated resting rate, especially one you notice when you’re calm and relaxed, can point to conditions like anemia, thyroid overactivity, dehydration, or heart rhythm disorders. The heart is working harder than it needs to, and over time that extra workload takes a toll.
How Exercise Changes Your Resting Heart Rate
Aerobic exercise is the most effective way to lower your resting heart rate without medication. Activities like brisk walking, running, cycling, and swimming force the heart to pump harder during the workout, and over weeks it adapts by becoming stronger. A stronger heart ejects more blood per beat, so it can slow down at rest and still meet the body’s needs.
Most people who start a consistent aerobic routine, three to five sessions per week of moderate intensity, see a noticeable drop within a few months. The change is gradual, often a few beats per month, which is why tracking over time is more useful than obsessing over any single reading. The fitter you become, the lower your baseline tends to settle, which is one reason elite endurance athletes commonly sit in the 40s.