Friends have this experience. It’s okay in summer, but once it’s winter, it’s hard to get up from the bed in the morning. alarm clock was pressed two or three times, and sometimes I was almost late to work and was forced to crawl out of the bed. What's going on? It’s also a standard 8-hour sleep, why are you prone to staying in bed in winter?
This is not actually you are lazy. There are 4 physiological reasons that make you unable to control yourself.
is the temperature. The human body has a biological clock, which controls the work and rest time of a person, and what makes the biological clock work is a hormone called " cortisol " in the body. When we sleep at night, the level of cortisol decreases. When we wake up, the secretion of cortisol begins to increase again, so the human body regains perception of the surrounding environment, which strengthens people's alertness.
When the weather is cold, the temperature is lower, and the body's cortisol secretion will increase. The increase in cortisol makes our sleep deeper and requires more time to wake up from sleep. Therefore, people need to spend more time to wake up from sleep in winter, which is one of the reasons why we stay in bed.
The second is light stimulation. It was also time to get up at 6 o'clock in the morning, but it was still hazy at 6 o'clock in the winter, while the sun was already rising at 6 o'clock in the summer. Light stimulation plays a great role in the circadian rhythm of the human body. It can stimulate the pineal gland of the human brain and secrete melatonin. It plays a crucial role in the human body's biological clock. When there is insufficient light, melatonin will be secreted, making people sleepy, but if there is sufficient light and melatonin will be reduced, people will enter a state of awakeness. This explains why it is difficult for people to wake up in winter mornings because the sunshine time in winter is short, the sunshine time in the early morning is delayed, and the melatonin level remains high.
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3 is the indoor air. In winter, the room is relatively closed and has less ventilation. After a night of metabolism, the content of carbon dioxide in the air increases and is in a relatively hypoxia state. Deficiency of oxygen can make people tired, and high carbon dioxide concentration can also make people drowsy and not sober.
4 is the psychological factor of human beings. In winter, the temperature difference between the temperature inside the quilt and outside is large. When you get up, the larger temperature difference makes you feel a sense of retreat and you are unwilling to face the stimulation of the cold. This is also a common reason why you can't afford to stay in bed.
In fact, whether in winter or summer, for adults, ensuring 7-8 hours of sleep is a normal physiological need, and excessive sleep is not conducive to health. Of course, some methods can also help reduce the habit of staying in bed, such as relaxing before going to bed and soaking your feet in warm water, which is beneficial to going to bed early and getting up early. Appropriately improve the quality of sleep, formulate a strict sleep routine for yourself, and do not find any reason to stay in bed.
