Taking mice as experimental objects, the researchers found that lack of sleep will increase the concentration of cortimin, which will affect the hippocampus of the brain and form memory.
The researchers compared animals that were deprived of sleep for 72 hours with those that slept normally. The concentration of corticosterone in the former is higher than that in the latter, and the number of newborn brain cells in hippocampus is greatly reduced. If the concentration of cortical countries remains unchanged, the function of cell proliferation will be affected. This means that the lack of sleep leads to the increase of corticosterone concentration, which may be the reason why the mature brain produces less new cells.
Researchers point out that long-term lack of sleep can lead to cognitive impairment, which may be due to the inhibition of mature nerve cells.
Other hazards 1. In 2000, the University of Chicago found that long-term lack of sleep can lead to obesity, diabetes, hypertension and other diseases. Even strong young people, who sleep only 3-4 hours every night for a week, will lose their ability to deal with carbohydrates, stress, maintain hormonal balance and resist infectious diseases.
2. In 2000, the research team of MacArthur Foundation found that long-term lack of sleep (only sleeping for four hours a day for six consecutive nights) was harmful to health, leading to obvious changes in metabolism and endocrine glands, similar to some aging.
3.Patrick and Chilport (1968) did a 90-hour complete sleep deprivation experiment on three healthy young people, and one of them had sensory hallucinations from the beginning.
A medical report from Britain pointed out that poor or insufficient sleep quality may be an important reason for the increasing number of people suffering from diabetes in modern times.
This British medical journal named Uncet contains the research papers of Dr. Scott from the University of Chicago.
Taking a group of young people as the research object, Dr. Court found that when these young people had poor sleep quality for a week in a row, there was a problem with sugar metabolism. Dr. Court said: "Healthy young people have no special risk factors. Lack of sleep for a week can lead to early diabetes. " It can be seen that sleep is important to the human body. His research also found that poor sleep quality has a great influence on children's intellectual growth.
More and more research reports prove that sleep has a great influence on health. Many chronic diseases in modern society, including diabetes, hypertension and even cancer, may have a causal relationship with poor sleep quality. Therefore, for modern busy people, the pursuit of good sleep quality is the only way to keep healthy.
6. In the 2008 US presidential election, the sleep problems of Obama and others also became news topics. Being busy rushing to the scene, canvassing votes, giving speeches and meeting people, it is difficult to rest and fall asleep, which leads to lack of sleep, which affects health and doubts his future ability to govern the country.
Increasing the risk of heart attack A study published in Archives of Internal Medicine, a journal of the American Medical Association, shows that reducing sleep time will increase the risk of heart attack. The report points out that:
(1) If you sleep less than seven and a half hours a day, your risk of cardiovascular diseases such as stroke and heart disease will increase by 33%.
(2) Japanese researchers tracked the sleep of 1255 hypertensive patients for an average of 50 months, and recorded the blood pressure and sleep time during the day and night, as well as cardiovascular diseases such as stroke, heart attack and sudden cardiac death.
The researchers recorded 99 cases of cardiovascular diseases, and found that people who slept less than 7 hours had an average of 2.4 cases per 100 people every year.
This study found that people with elevated blood pressure at night are more likely to suffer from heart disease. Kazuo Kawaguchi of Jichi Medical University, the main author of the research report, wrote: "Shortening sleep time is a precursor to heart attack in elderly hypertensive patients."
(3) Abnormal sleep may also increase the risk of diabetes and obesity, and increase the risk factors of various cardiovascular diseases, including nocturnal hypertension and sleep-disordered breathing.
(4) In daily life, research reports in this field appear constantly. For example, Knudson (2009), a scholar at the University of Chicago, recently published a research report in the Archives of Internal Medicine. People who sleep less than five hours have a higher risk of hypertension.
At present, studies have proved that lack of sleep in children will increase the incidence of obesity, depression and hypertension, while lack of sleep in the elderly will increase the risk of falls, while middle-aged people will increase the risk of infection, heart disease, stroke and cancer.
This is the research team taking 578 people with an average age of 40 as the research object, recording their blood pressure and sleep time. Only 10% people sleep for more than 8 hours. The average sleep time of people in this study is 6 hours. People who sleep less for more than 5 years are prone to hypertension, and the risk of sleeping less than 1 hour increases.
Knudson said that sleeping for five hours increased the risk of hypertension by 37% compared with sleeping for five hours and six hours.
(5) The latest American research shows that people who sleep less than 6 hours a night are prone to high blood pressure.
The rebellious behavior of teenagers during the hurricane is also related to the lack of sleep during this period. Lack of sleep will affect the mood, lead to a bad mood, and naturally show rebellious behavior.