作者对本地区200名受检者中无任何心脏病史,心肺、血压及标准12导联心电图、心回声图、末梢血液、生化学(总胆固醇、中性脂肪、电解质、空腹血糖)以及尿液都正常的94名(男42,女52),年龄31～77岁,平均53±10岁的健康人,进行24小时Holter心电图观察、分析,研究心律失常的发生情况。结果:心率在清醒时平均为68±8/分(次),睡眠时为53±6/分,睡眠时减少了(P<0.01)。其中,清醒时30岁为72±5,40岁时为72±7都比60岁以上的 The authors did not have any history of heart disease, cardiopulmonary, blood pressure and standard 12-lead ECG, Echocardiogram, peripheral blood, biochemical (total cholesterol, neutral fat, electrolytes, fasting blood glucose) and urine in 200 subjects in the region Normal 94 (male 42, female 52), aged 31 to 77 years, average 53 ± 10-year-old healthy people, 24-hour Holter ECG observation, analysis, study the incidence of arrhythmia. Results: The average heart rate was 68 ± 8 / min at awake, 53 ± 6 / min at sleep, and decreased at sleep (P <0.01). Among them, when awake 30 years old is 72 ± 5, 40 years old is 72 ± 7 than 60 years old