This statement may be related to the formulation of "critical period" or "sensitive period". It refers to the best period for the development of specific abilities and behaviors, during which individuals are particularly sensitive to the environmental impact that forms these abilities and behaviors. PS, what does the landlord mean by natural growth? Do you mean any education? Lazar = 1982 published a study on the influence of early education on children from low-income families, with a time span of 10 years. There are mainly the following detection indicators: 1. Whether the early education project has long-term effects; 2. Is it more effective for low-income families? 3. The academic performance of the subjects at school age (such as whether they receive special education or not, and repeat grades, etc. ) 4. The result of ability (IQ and academic performance test) is roughly: 1. Children who participate in the project are more likely to meet the most basic requirements of the school, and the proportion of children who transfer to special education is smaller (the significance of this result is that in the long run, it not only reduces the burden on families, but also saves a lot of money for the country) 2. 3. Some social and psychological aspects related to academic performance will be better: pride, etc. 4. Performance in school and expectations for work will be more positive. Personal summary: compared with improving IQ, early education may have greater significance for children's future social and psychological development; Reduce the possibility of children's stunting in families with unfavorable socio-economic conditions; In addition, for people with mental retardation; Some developmental disorders, such as dyslexia and autism; There are some non-progressive injuries, such as cerebral palsy; More targeted and intensive early intervention can reduce the degree of obstacles. The lasting impact of early education: a report from the longitudinal research alliance