Young people under the age of 44; People aged 45-59 are middle-aged; People aged 60-74 are pre-old or quasi-senile; People over the age of 75 are elderly; 9
author：Planting flowers and pastures
Young people under the age of 44;
People aged 45-59 are middle-aged;
People aged 60-74 are pre-old or quasi-senile;
People over the age of 75 are elderly;
People over the age of 90 are considered to be long-lived seniors.
- World Health Organization Age Classification Criteria
This criterion takes into account the trend of increasing average life expectancy of human beings, and also takes into account the inevitable result of the increasing level of human health. #谈谈老年问题#
Young people under the age of 44; People aged 45-59 are middle-aged; People aged 60-74 are pre-old or quasi-senile; People over the age of 75 are elderly; 9
Young people under the age of 44; People aged 45-59 are middle-aged; People aged 60-74 are pre-old or quasi-senile; People over the age of 75 are elderly; 9
Young people under the age of 44; People aged 45-59 are middle-aged; People aged 60-74 are pre-old or quasi-senile; People over the age of 75 are elderly; 9
Young people under the age of 44; People aged 45-59 are middle-aged; People aged 60-74 are pre-old or quasi-senile; People over the age of 75 are elderly; 9
Young people under the age of 44; People aged 45-59 are middle-aged; People aged 60-74 are pre-old or quasi-senile; People over the age of 75 are elderly; 9
Young people under the age of 44; People aged 45-59 are middle-aged; People aged 60-74 are pre-old or quasi-senile; People over the age of 75 are elderly; 9
Young people under the age of 44; People aged 45-59 are middle-aged; People aged 60-74 are pre-old or quasi-senile; People over the age of 75 are elderly; 9
