The newborn's brain weighs 350g 400g, which is 25% of the adult's brain. At this time, the weight of newborns only accounts for 5% of adults.

With the growth and development, at the age of 6 months, the brain weight has reached 50% of that of adults, and it will not reach 50% of that of adults until 10 years old.

It can be seen that the development speed of the brain in infancy can be described as fast!

At 1 year, the weight of the baby's brain is close to 60% of that of the adult.

At the end of the second year, the weight of the brain is 75% of that of adults.

At the age of 3, the baby's brain weighs nearly as much as that of an adult, and then, the development speed of the brain will gradually slow down.

0-6 years old is the key period of brain development, 0-3 years old is the fastest period of brain development in a person's life, and it is also the golden age of early education, intellectual development and brain health care. 16 26 years old is the most vigorous period of brain learning ability.

In adulthood, everyone will lose 654.38+ million brain cells every day, and at the age of 65, they will lose about 30%. However, if you keep using your brain, think often and study actively, you can delay the aging of your brain.

It is precisely because people are extremely primitive at birth that they provide a powerful opportunity for human development.

First, how to understand the extreme primitive

Although hundreds of millions of brain cells or neurons grow at birth, these neurons are not connected into a neural network with complex functions. Just like a country has installed tens of millions of telephones, but they are not connected to each other, so they cannot communicate with each other.

At birth, the weight of human brain is 25% of that of adults, and that of other primates is 40% to 50%. Few other species are born as helpless as humans and take a long time to become independent.

Second, why is it a powerful opportunity for development?

Monkeys, mice and tigers can only survive under limited conditions. Monkeys mainly live in tropical and subtropical areas, while mice can't live in colder areas such as Iceland, and tigers can only live in mountainous forest areas. )

And humans can live almost anywhere on earth, even in space (space station)!

The main reason is that people contact with the environment, and their brains have developed accordingly, and they can constantly adapt to different environments and create various survival tools.

More importantly, experience plays a great role in the formation and development of neural networks, and experience can also change and adjust the developing nervous system.

Even twins or multiple births, each of them has a different understanding of the world and response to stimuli, and the neural network formed is completely different.

Brain development is closely related to living environment and education;

A study on mice in Britain shows that if mice live in an extremely monotonous environment after birth, the cerebral cortex will shrink, the weight of the brain will be reduced, and the connection between nerve cells will be reduced, which is completely different from living in an environment rich in visual, auditory and tactile stimuli.

So are children. At the age of 0.3, whether it is physiological or biochemical, appropriate stimulation plays an important role in the function and structure of the brain ("stimulation" mainly refers to the living environment, objects, knowledge, the operation of various objects, sound, taste and so on. ) Infant is the period when the brain develops most rapidly. The younger you are, the faster you develop. Under the age of 3, children's brains are developing with each passing day. In the three years after the birth of a child, there are thousands of opportunities to learn new skills, such as learning to crawl and walk, saying the first word and sentence, reaching for something, holding a spoon, learning to distinguish between familiar relatives and strangers, and going to the toilet alone. In the years after the baby is born, all parts of the brain are integrated and the functions of all parts of the nervous system are constantly strengthened. This kind of integration and reinforcement plays a vital role in children's cognition and adaptation to the unknown world.

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