Why do dreams belong to the human body?

Everyone spends about 1/3 of their life sleeping. If they live to be 70 years old, they spend about 27 years sleeping. About 1/5 of these 27 years of sleep are dreaming, so the time spent dreaming must be at least five or six years. Such a long time to dream seems to be a waste of sleep. In fact, dreaming is a physiological need of the human body and can play many positive effects. The main points are as follows:

1. Restore and strengthen brain function

Dreams can cause extremely active chemical reactions inside the brain, causing the protein synthesis and renewal of brain cells to peak, while the rapidly flowing blood brings oxygen and nutrients and carries away waste, laying the foundation for new activities the next day. It can be seen that dreams help to restore and strengthen brain function.

2. Pleasure your body and mind

Dreaming sweet dreams often brings people happy, comfortable, relaxed and other beautiful feelings, making people clear their minds and enhancing their thinking activities. This helps digestion and physical and mental health, stabilizes people's emotions, and promotes and improves people's wisdom. Activity ability is of great benefit. No wonder some people in life use 'wish you a sweet dream' as a mantra to say hello before going to bed.

3. Extend life

Studies have shown that infants and young children spend about 50% of their long sleep every day in dreams. What the content of these dreams is still a mystery. But people think that if babies 'eyes move rapidly while they sleep, it means they are storing in memory a lot of the stimuli they feel while awake. However, the elderly's dream sleep is greatly reduced, only about 1 hour a night. If you calculate, dreamless sleep will remain relatively constant throughout a person's life, from 8 hours at birth to 6 hours in old age, while dreamless sleep will change a lot. If you can try to increase the amount of sleep you have in dreams, you can extend your life.

4. Promote innovation

Freud said: 'Dreams not only have the function of copying, but also have the function of innovation.' Many people have the experience of finding answers to questions that cannot be solved after hard thinking will be found in their dreams, and things that are difficult to remember will be 'fresh' in their dreams. This leads to the question of whether dreaming can benefit one's intelligence.

In short, dreams within the normal range are good for maintaining people's health and do not endanger health as many people fear.