2 o'clock: Most organs are resting, but the liver is busy decomposing and discharging toxins all day. If you wake up at this time, it will be difficult to fall asleep again.
3 o'clock: All organs are resting, muscles are completely relaxed, blood pressure is low, and pulse and breathing times are reduced.
4 o'clock: the rhythm of all organs in the whole body slows down, the body temperature reaches the lowest point of the day, the blood flow slows down, and sudden diseases such as stroke and sudden death are easy to attack quietly.
5 o'clock: After 3~4 sleep cycles, I basically got a full rest.
At 6 o'clock, the body woke up, the secretion of adrenocortical hormone began to increase, the blood pressure of the human body increased, and there was an "early peak phenomenon", the heartbeat accelerated and the body temperature increased.
7 o'clock: Adrenal cortical hormone secretion reaches its peak, and the human body's metabolism is further vigorous, and its immunity is the strongest.
Extended data:
I like lying in bed and hurting my brain. If you can't get up in the morning, brushing your teeth and washing your face like a war after getting up will lead to excessive excitement of sympathetic nerves and autonomic nervous disorder, which will make people nervous all day. The research of Stanford University in the United States found that the disorder of circadian rhythm can produce memory disorder similar to Alzheimer's disease.
Irregular diet hurts the digestive tract. A study by the University of Tokyo in Japan found that 38.4% of patients with gastric cancer ate too late or irregularly. This is because the epithelial cells of gastric mucosa are updated at night every two or three days. Eating dinner too late, the gastric mucosa can not be repaired in time, and the risk of gastric cancer may increase over time.
The peak of urinary calcium excretion is 4~5 hours after meals. When people fall asleep too late for dinner, calcium will deposit and form kidney, ureter, bladder and urethra stones.
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