Women wearing Holter, first of all, should pay attention to stay away from electronic products, including cell phones, computers, because electronic products will have some interference with the results of Holter, after the interference will lose the value of reference and diagnosis. In addition, during the period of wearing Holter, patients try not to do some physical examination, including ultrasound, CT, etc., because in the process of examination, some electric waves will also have interference and influence on Holter, which will also change the results. During the period of wearing Holter, patients should try to maintain normal living habits, do not intentionally rest, nor too much activity, because Holter reflects the patient’s overall 24h average heart rate, cardiac cycle and blood supply of the heart, only to maintain a normal, i.e., the same as the usual state of life, in order to objectively, accurately and truly reflect the results of the Holter.