MORE INFO:
A resting heart rate is the number of times your heart beats per minute when you’re not engaged in a physical activity. What’s normal depends on your age and activity level but, generally, a resting heart rate of 60 to 80 beats per minute (BPM) is considered to be in the normal range. If you are an athlete, a normal resting heart rate can be as low as 40 BPM. Studies have shown that men tend to have higher maximum heart rates than women, however the same does not apply to resting heart rates.
SOURCE: