Your heart is constantly working, pumping blood around your body every second of every day.
One of the simplest ways to check how efficiently it's working is by measuring your resting heart rate.
With smartwatches and fitness trackers becoming more popular than ever, many people regularly see their heart rate but aren't sure what the numbers actually mean.
Is 55 good?
Is 85 too high?
Should you be worried if it changes?
In this guide, we'll explain what a healthy resting heart rate is, what affects it, and how regular exercise can improve your heart health over time.
What Is a Resting Heart Rate?
Your resting heart rate (often shortened to RHR) is the number of times your heart beats per minute while you're completely relaxed.
The best time to measure it is:
- First thing in the morning.
- Before getting out of bed.
- After a good night's sleep.
- Before drinking caffeine.
This gives you the most accurate picture of how hard your heart has to work when your body is at rest.
What Is Considered a Healthy Resting Heart Rate?
For most adults, a resting heart rate between 60 and 100 beats per minute (BPM) is considered within the normal range.
However, "normal" doesn't always mean "ideal."
In general:
- 50–60 BPM is common in very fit individuals.
- 60–70 BPM is often seen in active, healthy adults.
- 70–80 BPM is still considered normal for many people.
- 80–100 BPM is within the normal range but may suggest there's room to improve cardiovascular fitness, depending on the individual.
Everyone is different, so it's important to look at your heart rate alongside your overall health rather than focusing on one number alone.
Why Do Fitter People Often Have Lower Heart Rates?
Regular exercise strengthens your heart muscle.
A stronger heart pumps more blood with each beat, meaning it doesn't need to beat as often to supply your body with oxygen.
Think of it like a larger engine doing the same job with less effort.
This is one reason endurance athletes often have resting heart rates below 60 BPM.
For many people, improving fitness gradually leads to a lower resting heart rate over time.
What Can Affect Your Resting Heart Rate?
Your heart rate naturally changes throughout the day.
Several factors can temporarily increase or decrease it, including:
- Exercise.
- Stress or anxiety.
- Poor sleep.
- Dehydration.
- Caffeine.
- Alcohol.
- Certain medications.
- Illness or fever.
- Hot weather.
Because of this, it's better to look for long-term trends rather than worrying about a single reading.
How to Measure Your Resting Heart Rate
There are two easy ways to check your resting heart rate.
Using a Smartwatch or Fitness Tracker
Most modern smartwatches automatically record your resting heart rate throughout the day and while you sleep.
These devices make it easy to monitor changes over weeks and months.
Measuring It Yourself
You can also measure it manually.
- Sit or lie down quietly for at least five minutes.
- Place two fingers on your wrist or the side of your neck.
- Count the number of beats for 30 seconds.
- Double the number to calculate your beats per minute.
Repeating this over several mornings provides a more reliable average than taking a single reading.
How Exercise Improves Your Resting Heart Rate
Regular physical activity helps your cardiovascular system become more efficient.
Activities that can improve heart health include:
- Brisk walking.
- Cycling.
- Swimming.
- Jogging.
- Dance fitness.
- HIIT workouts.
- Strength training.
You don't need to become a marathon runner to benefit.
Even 30 minutes of moderate exercise most days of the week can make a positive difference over time.
How Long Does It Take to See Improvements?
Everyone responds differently, but many people notice gradual improvements after several weeks of consistent exercise.
As your fitness improves, you may notice:
- Your resting heart rate slowly decreases.
- You recover more quickly after exercise.
- Daily activities feel easier.
- You become less out of breath.
- Your overall energy levels improve.
Small improvements are a sign that your heart is becoming stronger and more efficient.
Can a Resting Heart Rate Be Too Low?
A low resting heart rate isn't automatically a problem.
For well-trained athletes and very active people, a heart rate below 60 BPM can be completely normal.
However, if you experience symptoms such as dizziness, fainting, unusual fatigue or shortness of breath alongside a very low heart rate, it's important to seek medical advice.
When Should You Speak to a Healthcare Professional?
Most changes in resting heart rate are harmless and relate to lifestyle, fitness or temporary illness.
However, it's sensible to seek medical advice if:
- Your resting heart rate is consistently much higher or lower than usual.
- You experience chest pain.
- You faint or feel close to fainting.
- You have persistent dizziness.
- You notice an irregular heartbeat.
- You're concerned about sudden changes that can't be explained by exercise, illness or stress.
If you're ever unsure, it's always better to have your symptoms assessed.
Tips for Improving Your Heart Health
Healthy habits that support your heart include:
- Exercising regularly.
- Walking more each day.
- Getting enough sleep.
- Staying hydrated.
- Eating a balanced diet.
- Managing stress.
- Avoiding smoking.
- Limiting excessive alcohol intake.
Small lifestyle changes, maintained consistently, can have a significant impact over time.
CardioFire Challenge
Measure your resting heart rate first thing every morning for the next seven days.
Record each reading and calculate your weekly average.
If you're beginning a new fitness routine, continue checking it every few weeks.
Watching your resting heart rate gradually improve can be one of the most rewarding signs that your fitness is moving in the right direction.
Final Thoughts
Your resting heart rate is one of the simplest indicators of your overall cardiovascular fitness.
While a single reading doesn't tell the whole story, tracking your resting heart rate over time can reveal how your lifestyle, exercise routine and recovery are affecting your heart health.
Remember, fitness isn't just about lifting heavier weights or running faster.
Sometimes the biggest sign of progress is your heart quietly becoming stronger, healthier and more efficient with every beat.
