Resting Heart Rate by Age: What's Normal?

The normal range and how age fits in

For adults, 60 to 100 bpm is the commonly cited normal resting range. Resting heart rate tends to be higher in infants and young children and settles into the adult range as we grow. In healthy adults, age alone changes resting heart rate only modestly compared with fitness, stress, and medication.

Within the normal range, a lower resting heart rate often signals better cardiovascular fitness, since a stronger heart moves more blood per beat. That is why a resting rate near 60 bpm is common in active people, while someone sedentary may sit closer to 80 bpm.

Why athletes are often lower

Endurance training strengthens the heart muscle and improves how much blood it pumps with each contraction, known as stroke volume. As a result, the heart needs fewer beats to circulate the same amount of blood, so a well-conditioned athlete may rest at 40 to 60 bpm without any problem.

A low resting heart rate is usually healthy in fit people, but the same number can mean something different in someone who is not athletic and feels faint or tired. Context matters, which is why symptoms — not just the number — guide whether a low rate is fine.

When a reading may be concerning

A resting heart rate consistently above 100 bpm (tachycardia) or below 60 bpm without a fitness explanation (bradycardia) can sometimes point to an underlying issue. Warning signs include palpitations, shortness of breath, chest discomfort, fainting, or unusual fatigue at rest.

Many everyday factors raise resting heart rate temporarily, including caffeine, stress, fever, dehydration, and certain medications. A single high reading is rarely a concern, but a persistent trend or accompanying symptoms should be checked by a healthcare professional.

Frequently asked questions

How do I measure my resting heart rate?

Sit quietly for at least five minutes, then count your pulse at the wrist or neck for 30 seconds and multiply by two. Measuring first thing in the morning, before caffeine or activity, gives the most consistent reading.

Is a resting heart rate of 55 bpm too low?

For a physically active person, 55 bpm is often perfectly healthy and reflects good fitness. It becomes worth checking only if you feel dizzy, weak, or short of breath, which could signal that the rate is too slow for you.

Does resting heart rate change with age?

Resting heart rate is highest in infancy and settles into the 60 to 100 bpm adult range as children grow. In healthy adults it stays fairly stable, and lifestyle, fitness, and medication influence it more than age itself.

Can I lower my resting heart rate?

Regular aerobic exercise, good sleep, stress management, staying hydrated, and limiting caffeine and alcohol can gradually lower resting heart rate in many people. Improvements happen over weeks, not overnight, and any medication changes should be discussed with a doctor.