You can monitor your heart rate in two ways: manually, by feeling your pulse at your wrist or neck, or automatically, using a wearable device. A normal resting heart rate for adults falls between 60 and 100 beats per minute, and tracking yours over time can reveal meaningful patterns about your fitness, stress levels, and overall cardiovascular health.
How to Check Your Pulse Manually
The two most reliable spots to feel your pulse are the radial artery at your wrist and the carotid artery in your neck. Both require only your fingertips and a clock or timer.
At Your Wrist
Turn one hand palm-up. Find the spot between the wrist bone and the tendon on the thumb side of your wrist. Place the tips of your index and middle fingers from your other hand on that spot and press lightly until you feel a rhythmic beat. Don’t push too hard, because too much pressure can block blood flow and make the pulse harder to detect. Once you feel a steady beat, count the number of pulses in 15 seconds and multiply by four to get your beats per minute.
At Your Neck
Place the tips of your index and middle fingers in the groove next to your windpipe, just to one side. You should feel the carotid pulse almost immediately since this artery is large and close to the surface. Two important rules here: never press on both sides of your neck at the same time, because this can make you dizzy or cause you to faint. And press gently. The carotid artery supplies blood directly to your brain, so heavy pressure can temporarily reduce that flow, especially in older adults.
Common Mistakes to Avoid
The most frequent error is using your thumb to check your pulse. Your thumb has its own pulse, which can mix with the signal you’re trying to measure and give you an inaccurate count. Always use your index and middle fingers (or add your ring finger for a broader contact area). Pressing too firmly is the other common problem. You’re not trying to stop the blood, just detect it. A light touch works best.
Getting an Accurate Resting Heart Rate
Your resting heart rate is the baseline speed of your heart when your body isn’t working to digest food, recover from movement, or manage stress. The best time to measure it is first thing in the morning, before you get out of bed. Caffeine, exercise, anxiety, and even standing up can all push the number higher, so consistency matters more than any single reading. If you can’t measure first thing in the morning, sit quietly for at least five minutes before taking your pulse.
Track your resting heart rate over weeks rather than fixating on a single measurement. Day-to-day fluctuations are normal. What you’re looking for is the trend. A resting heart rate that gradually decreases over months often signals improving cardiovascular fitness. A sudden jump of 10 or more beats above your personal baseline, sustained over several days, can indicate illness, dehydration, or accumulated stress.
What Your Numbers Mean
For most adults, a resting heart rate between 60 and 100 beats per minute is considered normal. Highly trained endurance athletes can have resting rates closer to 40 beats per minute because their hearts pump more blood with each beat, so fewer beats are needed. A rate consistently below 60 is called bradycardia, and while it’s perfectly healthy in fit individuals, it can signal an electrical problem in the heart if accompanied by fatigue, dizziness, or fainting. A resting rate consistently above 100 is called tachycardia and can result from stress, fever, anemia, thyroid issues, or heart conditions.
Context matters more than the number alone. A resting rate of 55 in someone who runs daily is a sign of fitness. The same number in someone who is sedentary and feels lightheaded tells a different story.
Using Wearable Devices
Most smartwatches and fitness trackers use a technology called optical sensing. The green LEDs on the back of your watch shine light into your skin, and a sensor detects changes in blood volume with each heartbeat. This method is quite accurate for steady-state activities: studies in cardiac patients found optical sensors detected heartbeats correctly about 95% of the time, and that accuracy climbed above 98% when the device’s built-in signal filtering was applied.
Chest straps work differently. They detect the electrical signals your heart produces with each beat, similar to a hospital heart monitor. This makes them more reliable during intense exercise, when sweat, wrist movement, and rapid changes in blood flow can throw off a wrist-based sensor. If you’re doing interval training or need precise beat-by-beat data, a chest strap is the better tool.
For casual daily monitoring and resting heart rate tracking, a wrist-based device is more than accurate enough. To get the best readings, wear the band snug but not tight, positioned about one finger-width above your wrist bone. Loose bands that slide around introduce motion noise that degrades accuracy.
Monitoring During Exercise
Heart rate zones help you gauge how hard you’re working. The American Heart Association defines moderate-intensity exercise as 50 to 70% of your maximum heart rate, and vigorous intensity as 70 to 85%. To estimate your maximum heart rate, the simplest formula is 220 minus your age. A 40-year-old, for example, would have an estimated max of 180 beats per minute, putting their moderate zone between 90 and 126 and their vigorous zone between 126 and 153.
That 220-minus-age formula is a rough estimate, though. Research led by Hirofumi Tanaka found it tends to underestimate maximum heart rate in older adults. A more accurate equation is 208 minus 0.7 times your age. For a 60-year-old, the standard formula predicts a max of 160, while the revised formula gives 166. That six-beat difference changes the calculated training zones meaningfully, especially for someone using heart rate to manage exercise intensity after a cardiac event or during a structured training program.
If you’re just starting to exercise, the simplest check doesn’t require math at all. During moderate activity, you should be able to talk but not sing. During vigorous activity, you can only get out a few words before needing a breath.
Heart Rate Variability: A Deeper Metric
Many wearables now track heart rate variability, or HRV, which measures the tiny fluctuations in time between consecutive heartbeats. Your heart doesn’t beat like a metronome. Even at a steady 70 beats per minute, the gap between individual beats varies slightly, and that variation reflects the balance between the two branches of your nervous system: the branch that accelerates your body during stress and the branch that slows things down during rest and recovery.
Higher HRV generally indicates your body is in a recovered, adaptable state. Lower HRV suggests your system is under strain, whether from physical training, poor sleep, illness, or psychological stress. Athletes use daily HRV readings to decide whether to train hard or take a recovery day. The metric is also gaining traction in workplace health research as a way to track chronic stress and recovery patterns over time.
HRV is highly individual. Your baseline number depends on your age, fitness, genetics, and even medication. Comparing your HRV to someone else’s is meaningless. What matters is your own trend: how today’s reading compares to your rolling average over the past one to two weeks. Most apps that track HRV will calculate this for you and flag when your reading is significantly above or below your personal norm.
Building a Useful Monitoring Habit
The value of heart rate monitoring comes from consistency, not from any single reading. Pick one method, whether manual or wearable, and use it at the same time each day under similar conditions. Morning resting heart rate is the most standardized measurement you can take at home, and even a simple log on your phone gives you a useful record to spot trends over weeks and months.
If you use a wearable, check that it’s logging your resting heart rate during sleep or immediately upon waking, as most devices do this automatically. Review the weekly trend rather than obsessing over daily dips and spikes. For exercise monitoring, a real-time display on your watch or chest strap lets you adjust your pace in the moment, keeping you in the training zone that matches your goal for that session.