In real life, we see that whether people are smart or not is not directly related to the weight of the brain. For example, the brain weight of a mature person is about1400g, but there are great individual differences in this figure. The brain weight of Russian writer Turgenev is 201.2g, while that of French writer Francois is is only1.01.9g, which is nearly double, but this does not prevent them from becoming the leading figures in the world literary world.
As early as the19th century, foreign studies found that the IQ of Japanese people has been improving since the19th century. For example, the average IQ of Japanese born between 19 10 ~ 1945 is 102 ~ 105, and that of Japanese born between 1946 ~ 1949 is/. In western industrialized countries, such as Britain, France, Germany, Belgium, Australia and the United States, the average IQ of people is 100. The reason for this situation is that after entering the19th century, Japanese society was violently turbulent, and a large number of farmers flooded into cities after the war (40% farmers flooded into cities during the 1930~ 1960 period). Rural people who used to "hear about each other and die" are bound to have a wide field of vision and know a lot. While the amount of information received has soared, the level of education has also greatly improved, so the IQ has also improved. The influence of acquired education and training on human intelligence verifies Engels' assertion that "the development of human intelligence is based on how people learn to change nature". It also confirms Marx's statement that "people who develop their own material production and material communication have changed their own thinking and products of thinking while changing their own reality".
Many studies on cranial nerves, physiology and psychology have also proved that education and training can improve people's intelligence. (1) The deprivation of early experience has a lifelong negative impact on individuals. Many sensory deprivation experiments conducted by psychologists have proved that the deprivation of early experience has a negative impact on an individual's life. For example, mice growing up in black boxes have extremely poor intelligence. Zoologists isolate little monkeys from their companions. As a result, these young monkeys are not only retarded in intellectual development, poor in learning ability, withdrawn and easily frightened, but also have abnormal courtship and mating behavior. Dazed in front of the opposite sex monkey, at a loss. From the research data of wolf children and some orphanages, we can see that their intellectual development lags far behind normal children because they lack normal life training. Chinese scholars studied 70 northeast children who lacked parent-child contact for 12~ 18 months. The results show that: first, compared with normal children, the average IQ of children who lack parent-child contact in the early stage is 20 points lower. Secondly, the lack of early parent-child contact has brought a negative impact on children's intelligence, which has not decreased with age, that is to say, this negative impact is permanent. Third, the longer the lack of contact between parents and children in the early stage, the greater its negative impact. If the term exceeds two years, it will have a huge negative impact on individuals, and this impact is even irreversible. (2) Increasing early experience can promote the development of intelligence. The average IQ of children with early sensory training and intellectual training can be improved by dozens of points. Even children with mental retardation can be corrected if they are trained and educated early. The world-famous Montessori teaching method is a teaching method of early special education and training for children with mental retardation to restore their intelligence. This law has been extended to normal children, that is, universal early childhood education. (3) Acquired education can make brain tissue more developed. Neurophysiologists have found that the cerebellum of trained animals is more developed than that of untrained animals. American psychologists have found that although people will die about100000 brain cells every day after the age of 30, if they can receive education and training in a brand-new environment, not only will brain cells not die so fast and so much, but they will also grow nerves on the old nerve trunk. Japanese scholars used ultrasound to measure the brains of people with different lifestyles. The results show that people who are diligent in thinking, that is, people who often carry out intellectual training, are often in a state of stretching their cerebral vessels, so that brain cells can get rich nutrition and avoid premature decline.
As can be seen from the above introduction, the genetic quality of human brain is the biological premise of individual intelligence development, which only provides the possibility for our intelligence development, but not the reality for our intelligence development. The actual intelligence level is determined by our living environment and education level. As far as environment and education are concerned, education is a purposeful, planned and systematic influence, which is imposed on you by people who have received special education and training. Therefore, it can be more systematic and powerful than the general environmental impact effect. Therefore, you should sincerely believe in education and its training, actively cooperate with teachers' guidance and teaching, learn more and practice more, persevere, step by step, and give up, which will certainly improve your intelligence level.