What is the current situation and trend of aging?

At present, the elderly population is the highest in human history. The United Nations predicts that the population aging rate in 2 1 century will exceed that in the last century.

According to the data in World Population Prospects: Revised Edition 20 19, by 2050, 1 of every six people in the world will be over 65 years old (16%), and the figure will be1/kloc in 20 19 years. By 2050, in Europe and North America, 65,438+0 out of every 4 people will be aged 65 or above.

In 20 18, the number of people aged 65 and above in the world exceeded the number of people under 5 years old in an unprecedented way. In addition, it is predicted that the population aged 80 or above will triple, from 65,438+43 million in 20 19 to 426 million in 2050.

Population aging is a phenomenon that the population distribution of a country tends to be aging. This is usually reflected in the average age and median age of the population, with the proportion of children decreasing and the proportion of the elderly increasing.

Population aging is worldwide, appearing in many developed countries, but it has also begun to appear in developing countries recently. This trend is accelerating in developing areas, which means that the elderly will be concentrated in developing areas. Oxford Institute of Population Aging believes that population aging has slowed down in Europe and will have a great impact on Asia in the future, especially those Asian countries in the fifth demographic transition mode.

In developed countries recognized by the United Nations (with a total population of 65.438+0.2 billion in 2005), the overall median age has increased from 28 years old in 654.38+0.950 to 40 years old in 2065.438+0.00, and is expected to be 44 years old in 2050. World equivalent 1950 is 24 years old, 20 10 is 29 years old, and 2050 is 36 years old. In developing regions, the median age is expected to rise from 26 in 2065 to 35 in 2050.

Global aging

Asia and Africa are two regions where a large number of countries are facing an aging population. After 20 years, many countries in these areas will face the situation that the population over 65 is the largest, and the average age is close to 50. According to the research led by the University of Washington, 2.4 billion people will be over 65 in 2 100, while the population under 20 will be1700 million.

Oxford Institute of Population Aging is an institution that studies the global population aging. Its research shows that many views on global aging are based on myths. As the population matures, there will be considerable opportunities in the world, as Sarah Harper, director of the Institute, emphasized in her book "Aging Society".

The fertility rate in most developed countries is now below the replacement level, and the current population growth depends largely on the migration and population growth momentum, which also comes from the fact that previous generations now enjoy longer life expectancy.