A team of researchers in California says that human brain volume has dropped by 10 percent. In the past few years, there have been many new research results, and some time ago, a new research result can show that with global warming, the human brain is also shrinking, and people's IQ may have declined.
The research team used nearly 300 human skulls over the past 50,000 years to make more than 300 measurements, and the final results showed that the human brain began to shrink sometime after the Ice Age. And until now, the overall shrinkage of the human brain has shrunk by 10% on the basis of the maximum, and scientists believe that the shrinkage of brain capacity may directly affect the level of human IQ.
IQ is a complex concept that is influenced by a variety of factors, including genetics, environment, education, culture, and more. Therefore, the cause of IQ decline is not a single cause, but the result of a combination of factors.
First of all, genetic factors are the biological prerequisite for the development of IQ, and if a person's parents have a low IQ, then that person's IQ may also be affected. However, genetics is not the only determinant, environment, education, culture and other factors can also have an impact on IQ.
Second, environmental factors can also have an impact on IQ. For example, people who live in poor families or disadvantaged environments may lack the necessary nutrients and stimuli, which can affect their IQ development. In addition, factors such as environmental pollution, excessive stress, etc., may also have a negative impact on IQ.
Third, the educational factor is also the key to IQ development. If a person is not well-educated, they may lack the necessary skills and knowledge that can affect their IQ performance. On the contrary, if a person receives a good education, they may gain more knowledge and skills that will increase their IQ level.
Fourth, cultural factors can also have an impact on IQ. Different cultural backgrounds and social environments can have different effects on a person's IQ development. For example, some cultures may be more focused on logical and rational thinking, while others may be more focused on intuitive and emotional thinking. These different cultural backgrounds and social environments can have different effects on a person's IQ development.
In recent years, human beings have relied too much on mobile phones, computers and other high-tech products, and there are many people who calculate an addition, subtraction, multiplication and division, and need to use computers and mobile phones. The use of electronic products for such a long time may indeed lead to the degradation of human IQ.
The cause of declining IQ is not a single cause, but the result of a combination of factors.