A good resting pulse for adults falls between 60 and 100 beats per minute (bpm). Within that range, lower tends to be better. A resting heart rate in the 60s or 70s generally reflects a heart that pumps blood efficiently without working overtime. Well-trained athletes often have resting rates as low as 40 to 50 bpm because their hearts have adapted to push more blood with each beat.
Normal Resting Pulse by Age
Heart rate norms change dramatically from birth through adulthood. A newborn’s heart beats far faster than an adult’s because its tiny heart holds less blood per pump. As the heart grows, it becomes more efficient and the rate slows down. Here are the typical resting ranges from the Cleveland Clinic:
- Newborn (birth to 4 weeks): 100 to 205 bpm
- Infant (4 weeks to 1 year): 100 to 180 bpm
- Toddler (1 to 3 years): 98 to 140 bpm
- Preschool (3 to 5 years): 80 to 120 bpm
- School age (5 to 12 years): 75 to 118 bpm
- Adolescent (13 to 17 years): 60 to 100 bpm
- Adult (18 and older): 60 to 100 bpm
These numbers apply when you’re awake and sitting still. Your pulse will be lower during sleep and higher during activity.
Sex Differences in Heart Rate
Women tend to have a resting heart rate about 2 to 7 bpm higher than men. The difference is largely due to heart size: a smaller heart holds less blood per beat, so it needs to beat slightly faster to circulate the same volume. This is completely normal and doesn’t signal a fitness disadvantage.
Why Athletes Have Lower Pulses
Regular aerobic exercise physically remodels the heart. The left ventricle, the chamber that pumps blood to the body, grows larger and stronger. Each contraction pushes out more blood, so fewer beats are needed to deliver the same supply. This is why endurance athletes can sit comfortably at 40 to 50 bpm while a sedentary adult of the same age might register 80 or 85.
Exercise also shifts the nervous system’s balance. Consistent training increases the influence of the vagus nerve, which acts as a brake on heart rate, while reducing the heart’s sensitivity to adrenaline. The result is a naturally calmer rhythm at rest. If you start a regular cardio routine, you can expect your resting pulse to drop noticeably within a few weeks to months.
What Affects Your Pulse Day to Day
Your resting heart rate isn’t a fixed number. It fluctuates based on several factors, and understanding them helps you interpret what you’re seeing on a smartwatch or when you check manually.
- Stress, anxiety, and emotions: Your pulse rises when you’re anxious, upset, or even very happy, because your nervous system releases hormones that speed up the heart.
- Temperature: Hot weather or a fever raises your heart rate as the body works harder to cool itself.
- Caffeine and stimulants: Coffee, energy drinks, and some cold medications contain stimulants that temporarily increase your pulse.
- Dehydration: When blood volume drops from not drinking enough water, the heart compensates by beating faster.
- Body size: People with obesity tend to have a higher resting heart rate.
- Pain: Even moderate pain triggers a stress response that pushes your pulse up.
- Body position: Your heart rate may tick up slightly when you first stand from a seated position, then settle back down.
- Medications: Beta blockers and calcium channel blockers are specifically designed to slow heart rate. Other medications, like certain decongestants or asthma inhalers, can raise it.
For the most accurate reading, check your pulse first thing in the morning before getting out of bed, or after sitting quietly for at least five minutes.
Your Pulse During Sleep
It’s normal for your heart rate to drop significantly while you sleep. During deep sleep, your pulse typically falls 20% to 30% below your daytime resting rate. So if you rest at 70 bpm during the day, you might dip into the high 40s or 50s overnight. During REM sleep, the stage where vivid dreams happen, your heart rate fluctuates more. A stressful dream can push your pulse up almost as if you were awake and active, while calm dream periods keep it low.
If you use a wearable device that tracks overnight heart rate, don’t be alarmed by brief dips or spikes. The overall trend matters more than any single reading.
When a Pulse Is Too Fast or Too Slow
A resting heart rate above 100 bpm in an adult is called tachycardia. It can be caused by something temporary like caffeine, dehydration, or anxiety. But if your resting pulse stays above 100 when you’re calm and hydrated, it can signal an underlying issue like a thyroid problem, anemia, or a heart rhythm disorder.
On the other end, a resting heart rate below 60 bpm is called bradycardia. In fit, active people, this is usually a sign of cardiovascular efficiency and nothing to worry about. But if a low heart rate comes with dizziness, fainting, unusual fatigue, or shortness of breath, it could mean the heart isn’t pumping enough blood to meet your body’s needs.
The number alone doesn’t tell the full story. A pulse of 55 in a runner is very different from a pulse of 55 in a sedentary person who feels lightheaded. Context and symptoms matter more than the raw number.
How to Check Your Pulse Manually
You don’t need a device to get an accurate reading. Sit down and rest quietly for a few minutes first. Then place the tips of your index and middle fingers on the inside of your wrist, just below the base of your thumb. Press lightly until you feel a steady beat. Pressing too hard can actually block blood flow and make it harder to detect.
Count the beats for a full 60 seconds while watching a clock or timer. Some people count for 15 seconds and multiply by four, which is faster but slightly less accurate, especially if your rhythm is irregular.
You can also check at the neck by placing two fingers in the groove beside your windpipe. Only press on one side at a time. Pressing both sides simultaneously can make you dizzy or faint because it temporarily restricts blood flow to the brain.
What to Pay Attention To Beyond the Number
When you check your pulse, the number of beats per minute is the most obvious piece of information, but rhythm matters too. A healthy pulse feels steady and evenly spaced. If you notice beats that skip, come early, or feel irregular, that’s worth noting. Occasional skipped beats are common and usually harmless, but a consistently irregular rhythm could indicate a condition like atrial fibrillation.
Healthcare providers also assess pulse strength on a simple scale: normal and strong is ideal, weak or thready can suggest low blood pressure or poor circulation, and a bounding pulse that feels unusually forceful can indicate high blood pressure or other cardiovascular stress. You may not be able to grade your own pulse precisely, but you can notice if it feels noticeably weak or unusually pounding compared to what you’re used to.
Tracking your resting heart rate over weeks and months gives you a personal baseline. A gradual decrease usually reflects improving fitness. A sudden, sustained increase of 10 or more bpm from your usual number, without an obvious cause like illness or stress, is a signal worth paying attention to.