But lack of sleep is a civilized disease of modern people, especially white-collar workers, who often don't take sleep seriously. On the surface, three hours less sleep seems to increase the working hours by three hours, but it doesn't pay attention to the harm caused by work efficiency and less sleep.
Sleeping less is like being in debt, and there is a price to pay. Small debts (less than 10 hours) are easy to pay off, but it is difficult to pay off when the accumulated amount exceeds 100 hours. Previous sleep studies mainly focused on the impact of sleep time on health. Many studies have found that if ordinary people don't sleep well for two or three days, they will make up for it in a few days and return to normal. However, recent research has noticed that if you sleep/kloc-0 every day or sleep less than half an hour, the long-term accumulated "sleep debt" will have a great impact on a person.
Last year, The Lancet, a British medical journal, published Scott's research on sleep at the University of Chicago in the United States: Young people are required to sleep for 8 hours in the first week, 4 hours in the second week, 0/2 hour in the third week, and the average sleep time in three weeks is 8 hours. The next week, Scott took blood samples from these people and found that their blood sugar was unbalanced, because lack of sleep would make the central nervous system more active, thus inhibiting pancreatic function and reducing insulin secretion. "Young people have fewer risk factors, and lack of sleep for a week can lead to early diabetes," said Courter. From this point of view, lack of sleep may be one of the reasons for the increasing number of people suffering from diabetes in recent years.
The study of middle-aged people also found that when they lack sleep, their endocrine will be irregular. Under normal circumstances, the secretion of corticosteroids will be reduced at night, which is consistent with the drowsiness caused by melatonin, which makes people enter dreams quickly. The amount of corticosteroids will rise slowly at night and peak at dawn. With enough sleep, corticosteroids will have a natural circulation and make people refreshed. However, if you don't get enough sleep for a week in a row, corticosteroids won't peak in the morning, so you will often appear listless and lazy.
Related studies have confirmed that lack of sleep will affect children's growth, because the human body will secrete growth hormone during slow-wave sleep to promote children's growth. Of course, it is also very important for adults, it is used to control the level of fat and muscle deployment; Lack of sleep can inhibit the secretion of leptin hormone, which is used to tell the body to feel full. If the secretion of this hormone drops, people always want to eat, especially carbohydrates, and lack of sleep can easily lead to obesity; Lack of sleep will reduce human immune function. Human experiments have found that when sleep is insufficient, the number of white blood cells will decrease, the immune function will decrease, and the ability to fight against foreign viruses and bacterial infections will decrease.