A scientific research institution in a country tracked and studied the mental health of more than 10,000 people born in the 1950s to 1970s, and tested their language ability, spatial perception ability and inductive ability from 13 to 18 years old  The results found that, during this period, adolescents whose language ability is much lower than their peers are at higher risk of developing schizophrenia and other mental diseases in adulthood
Appropriate education can significantly improve the language ability of young people, but it has little effect on middle-aged and elderly people.
 Researchers believe that the level of language ability in adolescence will be an important indicator of predicting mental illness in adulthood