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Children under age 15, by world region 1950 to 2100, with UN projections. Children under age 5. Children under age 5, by world region with UN projections. Contraceptive prevalence: modern methods vs. any methods. Crude death rate: the share of the population that dies each year WHO.
- Ageing Explained
- Common Health Conditions Associated with Ageing
- Factors Influencing Healthy Ageing
- Challenges in Responding to Population Ageing
- Who Response
At the biological level, ageing results from the impact of the accumulation of a wide variety of molecular and cellular damage over time. This leads to a gradual decrease in physical and mental capacity, a growing risk of disease and ultimately death. These changes are neither linear nor consistent, and they are only loosely associated with a perso...
Common conditions in older age include hearing loss, cataracts and refractive errors, back and neck pain and osteoarthritis, chronic obstructive pulmonary disease, diabetes, depression and dementia. As people age, they are more likely to experience several conditions at the same time. Older age is also characterized by the emergence of several comp...
A longer life brings with it opportunities, not only for older people and their families, but also for societies as a whole. Additional years provide the chance to pursue new activities such as further education, a new career or a long-neglected passion. Older people also contribute in many ways to their families and communities. Yet the extent of ...
There is no typical older person. Some 80-year-olds have physical and mental capacities similar to many 30-year-olds. Other people experience significant declines in capacities at much younger ages. A comprehensive public health response must address this wide range of older people’s experiences and needs. The diversity seen in older age is not ran...
The United Nations (UN) General Assembly declared 2021–2030 the UN Decade of Healthy Ageing and asked WHO to lead the implementation. The UN Decade of Healthy Ageing is a global collaboration bringing together governments, civil society, international agencies, professionals, academia, the media and the private sector for 10 years of concerted, cat...
Oct 10, 2019 · Today, there are 703 million people aged 65 or older, a number that is projected to reach 1.5 billion by 2050. According to the latest population estimates and projections from UN DESA’s...
According to World Population Prospects 2019 (United Nations, 2019), by 2050, 1 in 6 people in the world will be over the age of 65, up from 1 in 11 in 2019. All societies in the world are in...
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In 2021, there were around 8 billion. By the end of the century, the UN expects a global population of around 10 billion. But how has the age structure of the world’s population changed over time? The following chart — the population pyramid — makes it possible to understand this enormous global transformation.
The number and proportion of people aged 60 years and older in the population is increasing. In 2019, the number of people aged 60 years and older was 1 billion. This number will increase to 1.4 billion by 2030 and 2.1 billion by 2050.
World Bank staff estimates using the World Bank's total population and age/sex distributions of the United Nations Population Division's World Population Prospects: 2022 Revision.
