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人体在睡眠时,血压下降,体温降低,部分血液淤积在手脚等部位,当黎明到来,人体分泌肾上腺素与去甲肾上腺素,使身体自然处于一种准备状态。此时,心跳加快,血管收缩,血压上升,血液从四肢流向心脏,由于一夜未喝水,血液浓缩,流速减慢,并造成心脏、大脑的缺血,因此,清晨这段时间,是一些疾病好发的时间。研究表明,一些疾病会在清晨阶段表现出特有的症状或清晨时症状最明显,并造成人体的许多不适症状,这
When the human body is in sleep, the blood pressure drops, the temperature drops, some blood silts in the hands and feet and other parts. When the dawn arrives, the body secrete adrenaline and norepinephrine, make the body naturally in a state of readiness. At this point, rapid heartbeat, vasoconstriction, blood pressure, blood flow from the limbs to the heart, because no water overnight, blood concentration, slowing down the flow, and cause heart, brain ischemia, therefore, early this period of time is a number of diseases Good hair time. Studies show that some diseases show peculiar symptoms in early morning or the most obvious symptoms in early morning and cause many symptoms of the body, which