A normal resting heart rate for adults falls between 60 and 100 beats per minute (bpm). That’s measured while you’re awake, calm, and not moving. Your actual number within that range depends on your fitness level, age, stress, and other factors, so there’s no single “perfect” pulse. What matters most is knowing your own baseline and recognizing when something shifts.
How to Check Your Resting Heart Rate
You can measure your pulse in two spots. The easiest is the inside of your wrist, just below the base of your thumb. Place your index and middle fingers there and press gently until you feel a steady throb. That’s your radial artery. The other option is the side of your neck, right next to your windpipe, where you’ll feel your carotid artery.
Once you find the pulse, count the beats for 30 seconds and multiply by two. For the most accurate reading, check first thing in the morning before you get out of bed or have any caffeine. If you’re using a smartwatch or fitness tracker, it’s still worth spot-checking manually once in a while, since wrist-based sensors can misread during movement or if the band is loose.
What Affects Your Resting Heart Rate
Plenty of everyday factors push your resting heart rate up or down. Caffeine, dehydration, poor sleep, and emotional stress all tend to raise it temporarily. So do common stimulant medications and some cold or allergy drugs. On the flip side, certain blood pressure medications are specifically designed to slow the heart rate, so a reading in the low 50s might be completely expected if you’re taking one.
Hormonal shifts matter too. Your pulse can fluctuate across your menstrual cycle, during pregnancy, or with thyroid changes. A fever raises heart rate by roughly 10 bpm for every degree of temperature increase. Even body position plays a role: lying down typically gives a lower number than sitting or standing.
Fitness level is probably the biggest long-term influence. When you exercise regularly, your heart muscle gets stronger and pumps more blood with each beat. That means it doesn’t need to beat as often at rest to keep up with demand. Highly trained endurance athletes can have resting heart rates as low as 40 bpm, which would be considered abnormally slow in someone who isn’t active. The American Heart Association notes that athletes routinely sit well below 60 bpm without any problems.
When a Heart Rate Is Too Slow
A resting heart rate below 60 bpm is called bradycardia. In many people, especially those who are physically fit, a rate in the 50s or even 40s is perfectly healthy. It only becomes a concern when the heart is beating too slowly to deliver enough oxygen to your brain and body.
Signs that a slow heart rate is causing trouble include dizziness or lightheadedness, unusual fatigue (particularly during physical activity), confusion or memory problems, shortness of breath, and fainting or near-fainting episodes. If you’re consistently below 60 bpm and experiencing none of these symptoms, your heart is likely just efficient. If any of those symptoms show up alongside a low reading, that’s worth investigating.
When a Heart Rate Is Too Fast
A resting heart rate consistently above 100 bpm is called tachycardia. Brief spikes above 100 are normal during exercise, stress, or after that third cup of coffee. The concern is when your heart races while you’re at rest and calm, or when it’s accompanied by symptoms you can feel.
Those symptoms include a pounding or fluttering sensation in your chest (palpitations), chest pain or tightness, shortness of breath, dizziness, weakness, and fainting. A combination of chest pain, difficulty breathing, and lightheadedness at rest warrants immediate medical attention, regardless of what the number on your watch says.
Heart Rate During Exercise
Your heart rate during a workout is a useful gauge of how hard you’re pushing. To estimate your maximum heart rate, subtract your age from 220. A 40-year-old, for example, has an estimated max of about 180 bpm.
From there, you can figure out intensity zones. Moderate-intensity exercise, like brisk walking or an easy bike ride, falls at about 50% to 70% of your max. For that same 40-year-old, that’s roughly 90 to 126 bpm. Vigorous exercise, like running or high-intensity interval training, targets 70% to 85% of your max, or about 126 to 153 bpm. The American Heart Association recommends building up to about two and a half hours per week of moderate activity or 75 minutes of vigorous activity.
These are estimates, not strict boundaries. The 220-minus-age formula is a population average, and individual variation can be significant. If you feel fine pushing slightly above your calculated zone, that’s usually okay. If you feel dizzy, nauseous, or chest-tight well below it, back off regardless of what the math says.
Tracking Changes Over Time
A single heart rate reading is a snapshot. Trends over weeks and months tell you much more. If your resting heart rate gradually drops as you become more active, that’s a sign your cardiovascular fitness is improving. If it creeps upward over time without an obvious explanation, it could reflect increased stress, worsening sleep, dehydration, or an underlying health change worth discussing with a doctor.
Many people find it helpful to log their resting pulse a few mornings a week, either manually or through a wearable device, and watch for patterns rather than fixating on any single number. A resting heart rate that bounces between 65 and 75 from day to day is completely normal. One that jumps from a usual 68 to a sustained 90-plus is worth paying attention to.