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早在1978年,有人通过实验发现,人体在上午6～8点钟时的血压比其他时间段高20%左右。此后有不少文献证实,人在清晨患心肌梗死(简称心梗)的几率比在其他时间段高40%左右,患脑卒中的几率比在其他时间段高约49%,患不稳定性心绞痛、非ST段抬高性心肌梗死以及原发性心脏猝死的几率也比其他时间段高。由此可知,清晨是心脑血管疾病发生和恶化的高峰时段。对于高血压患者来说,他们在清晨的血压比一天内其他任何时间段的血压都高得多,发生心脑血管并发症的几率也较高。目前对高血压病人会在清晨出现血压高峰的原因仍不十分清楚,但多数专家认为这可能与下列几个因素有关:①人们在清晨开始活动时,体内由交感神经和肾上腺髓质释放的儿茶酚胺会大量增加,这会
As early as 1978, it was found through experiments that the body’s blood pressure was about 20% higher than that of other time periods from 6 am to 8 am. Since then there is a lot of literature that people have a 40% higher risk of developing MI in the early morning than in other time periods, a 49% higher risk of stroke than those in other time periods, and unstable angina , Non-ST-segment elevation myocardial infarction and the incidence of primary cardiac death than other time periods higher. This shows that early morning is the peak period of occurrence and deterioration of cardiovascular and cerebrovascular diseases. For hypertensive patients, their blood pressure is much higher in the early morning than at any other time of day, and there is a higher risk of cardiovascular and cerebrovascular complications. At present, the reasons for the peak blood pressure in patients with hypertension in the early morning are still not fully understood, but most experts think this may be related to the following factors: (1) When people begin activities in the morning, the body releases catecholamines from the sympathetic and adrenal medulla Will increase a lot, this will