Normal heart rate should be 60~100 beats/min, heart rate 85 beats/min is normal.
Normal adult heart rate should be 60~100 beats/min in quiet, awake state, generally women are slightly faster, the elderly are slightly slower, and children are faster, <3 years old children's heart rate is more >100 beats/min. A heart rate of 85 beats/minute is the normal heart rate for adults.
In adults, a heart rate of <60 beats/min is considered bradycardia, which may be due to physiologic bradycardia in athletes and the elderly, or it may be due to pathologic causes such as hypothyroidism.
If the heart rate is >100 beats per minute, it may be caused by nervousness, after exercise, drinking tea, etc., or it may be caused by hyperthyroidism, tachyarrhythmia, and other pathologic causes.
Heart rate is one of the vital signs, and a normal heart rate maintains the blood supply to the whole body. Abnormal heart rate should be consulted promptly to check for cardiac, endocrine and other pathological causes.