Do you think children are getting smarter nowadays? Do you think you are smarter and more capable than your parents? Do people around you feel the same way? If the answer is yes, then, have humans become smarter? First of all, it is true!

From 1984 to 1987, New Zealand psychologist Flynn collected IQ data of different countries in different periods, and got a rule: the IQ of human beings increased by 0.3% every year, and increased by about 3 points every 10 year. This is the famous Flynn effect.

There is no denying that there are intellectual differences between people. In order to quantify this difference, psychologists have designed a series of standardized questions to test. The score of the subjects after answering the questions is IQ, which means IQ is a score. The average IQ is 100, one standard deviation is 15, and the next standard deviation is the normal range, that is to say, about two-thirds of people in society have IQs between 85~ 1 15; /kloc-more than 0/30 is a genius, and less than 70 is a mental retardation. The proportion of these two people is about 2%.

First of all, it must be clear that IQ is not determined by race, gender or genetic inheritance. Never get caught in a minefield. There are many factors that make human IQ continuously improve, such as the elimination of parasites because of getting rich, the continuous improvement of people's nutrition, the popularization of school education, the overall social changes brought about by general industrialization, including the improvement of cognitive ability in daily work and even life, and the longer time parents spend with their children.

Diligence is a good training, and one point of hard work is one point of talent. What the ancients said makes sense. During the1970s, China people accounted for 2% of the total population of the United States, but China students accounted for 14% of Harvard students, 16% of Stanford students and 20% of MIT students. But in middle school, there is no difference in IQ between China and white Americans in the United States, while China students are more diligent. According to calculation, this kind of diligence can improve your IQ by 7 points. Although the IQ itself is not determined by race, as far as the average IQ is concerned, it is indeed China people, but not American Chinese or Chinese mainland Chinese, but Singaporean Chinese, with an average IQ of 1 14, which is one standard deviation higher than the world average IQ, and won the starting line as a whole. Chinese in Singapore are famous for their diligence and endurance.