The average is 60 to 100 bpm, but an ideal heart rate is 50 to 70 bpm.
Explanation:
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. However, recent studies have suggested that an ideal resting heart rate is between 50 to 70 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute.
The next time he goes surfing, he will get tired a lot faster and will run out of breath a lot faster. He will also feel a lot more tired quicker than he used to.
