In fact, there is no need to worry if the heart rate is lower than 60, which does not belong to the category of bradycardia. Bradycardia means under 40. For healthy people, around 60 is a very good heart rate. If you can persist in physical exercise (such as running in the morning or at night, swimming and fitness exercise), your heart rate will generally not reach 60. If LZ exercises regularly, a heart rate below 60 is a very healthy sign.
Every heartbeat is a blood transfusion. For a person's life, the total number of heart beats is almost certain, so a low heart rate in the normal range seems to prolong life! If you can keep it up, you will be a very healthy and long-lived person!