Why do you love to sleep in winter?

We humans have a clock called the biological clock. The biological clock is actually the inherent rhythm of an organism's life activities, which is determined by the time structure order inside the organism. Generally speaking, the biological clock is to let us do the right thing at the right time.

Compared with summer, the days in winter are shorter and the nights are longer. When night comes, people will feel sleepy unconsciously, which will always make us sleepy.

Sleep too long.

In winter, the days are short and the nights are long, so we will fall asleep earlier than other seasons. If the sleep time is too long, reaching more than 8 hours, it is easy to feel sleepy, which leads to the feeling that we can't sleep during the day.

3 Sleep time is too short

In winter, the weather is cold and the bed is cold. Many people can't sleep after tossing and turning for hours, resulting in lack of sleep and yawning. Naturally, they will feel sleepy and can't sleep during the day.

4 the amount of exercise is reduced

It's so cold in winter that many people are too lazy to exercise outdoors. They would rather stay at home and watch TV in front of the electric heater than move more. People's exercise is greatly reduced, and the human body is prone to drowsiness.

5 iron deficiency

Many women suffer from iron deficiency, which is likely to lead to chronic anemia. If human red blood cells can't deliver enough oxygen to other cells in the body, people will feel sleepy, unable to concentrate or easily catch a cold, giving people an illusion of unconsciousness.