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Ce mardi 5 mai 2026, le Parlement roumain a voté pour destituer le Premier ministre pro-européen Ilie Bolojan après une motion de censure initiée par les sociaux-démocrates du PSD et l'extrême droite. Ce vote risque de replonger le pays dans la tourmente politique.

The rising number of centenarians and older individuals raises important questions and issues, such as retirement ages, healthcare, pensions, living expenses, and elder care. Credit: Maricel Sequeira/IPS

By Joseph Chamie
PORTLAND, USA, May 5 2026 (IPS)

Throughout human history, reaching the age of 100 was considered an exceptional accomplishment. However, in recent decades, the number of centenarians in the world has been on the rise.

The increases in longevity for both men and women are welcomed developments. This remarkable accomplishment in human longevity, reaching 100 years or more, also poses challenges for the long-living individuals, their families, communities, and societies.

The rise in the number of centenarians can be attributed to a number of key economic, social, and scientific factors. These factors encompass public health initiatives, sanitation, environmental enhancements, medical advancements, improved access to healthcare, enhanced nutrition, medical treatments, vaccines, antibiotics, decline in infectious diseases, higher living standards, education, better management of chronic conditions, preventive care, social connections, and lifestyle choices.

In 1950, there were nearly 15,000 centenarians worldwide, representing a very small fraction of one percent of the global population of 2.5 billion. By 2026, the number of centenarians had increased by 45 times, reaching 672,000. This figure continued to represent a small, but larger fraction of one percent of the world’s current population, which had tripled to 8.3 billion.

The number of centenarians is expected to continue rising. It is projected that by 2050, the number of centenarians will almost quadruple, increasing from today’s 672,000 to 2.6 million. Furthermore, by the end of the century, the number of centenarians is expected to be approximately twenty-seven times greater than it is today, reaching 18 million by 2100 (Figure 1).

Source: United Nations.

Of the world’s 672,000 centenarians, nearly two-thirds reside in the more developed regions. The country with the largest number of centenarians is Japan with 126,000, accounting for nearly one-fifth of the world’s total. Following Japan, the next four countries and their number of centenarians are the United States (77,000), China (53,000), India (43,000), and France (35,000) (Table 1).

Source: United Nations.

In these various countries, the large majority of centenarians are women. For example, in Japan, women make up nearly 90% of centenarians. Similarly in the United States, nearly 80% of the centenarians in 2024 were women.

The oldest, documented centenarian to have ever lived is Jeanne Calment of France. She died at the age of 122 years and 164 days. Her age is verified through reliable birth, marriage, and death records in Arles, France, with her life spanning from 1875 to 1997. Calment’s father lived to the age of 94 and her mother lived to the age of 86.

The longest-lived man in recorded history was Jiroemon Kimura of Japan who died at the age of 116 years and 54 days. He was born in 1897 and died in 2013, making him the only man in history confirmed to have reached the age of 116. Kimura credited his longevity to living an active life and practicing the concept of hara hachi bunme in Japan, which involves eating until he was only 80% full.

Healthy aging and increased longevity in both men and women are influenced by a combination of genetic and non-genetic factors. In addition to genetics, major contributors to long life include access to healthcare, a healthy and nutritious diet, regular physical activity, not smoking, moderate alcohol consumption, maintaining a healthy body weight, strong social connections, managing stress and chronic conditions, getting sufficient quality sleep, maintaining a sense of purpose, and engaging in vigorous exercise (Table 2).

Source: Author’s compilation.

Medical research is continuing to explore ways to extend healthy lifespan and increase human longevity. Some of this research is focused on anti-ageing interventions, which include targeting biological mechanisms of ageing, delaying the onset of chronic diseases, and prolonging the period of healthy life. These interventions aim to enable individuals to live long enough to become centenarians. Unlike in the past, centenarians are no longer exceptional societal outliers. This significant change in human longevity is impacting not only centenarians but also reshaping the ways individuals, families, communities, and societies approach aging, retirement, and healthcare

Some believe that advancements in medicine and biotechnology may further promote the increase in human longevity. However, others argue that humanity has reached an upper limit of longevity, with the maximum reported age at death plateauing at around 115 to 122 years.

Unlike in the past, centenarians are no longer exceptional societal outliers. This significant change in human longevity is impacting not only centenarians but also reshaping the ways individuals, families, communities, and societies approach aging, retirement, and healthcare.

Living to 100 years or more is a goal that many people aspire to achieve. The rising number of centenarians and older individuals raises important questions and issues, such as retirement ages, healthcare, pensions, living expenses, and elder care.

To reach the age of 100 or beyond, long-term planning, including advance care planning, is crucial for individuals, families, and governments. This planning essentially involves ensuring that there are enough resources available for pensions, healthcare, living expenses, and elder care needs.

Unfortunately, individuals, families, and governments tend to neglect long-term planning. As a result, the gaps between retirement funds and the expenses for individuals living longer lives are significant and increasing.

Most older individuals have limited savings, a financial shortfall that is becoming increasingly common among older women and men. This issue is exacerbated by the demographic ageing of populations, with decreasing numbers of people in the workforce able to contribute to pensions and healthcare for retirees.

These financial gaps are not only causing economic challenges for older individuals and families, but also leading to a reevaluation of government policies and programs related to retirement ages, pension benefits, and health care for seniors.

In conclusion, the increase in human longevity and the rise in the number of centenarians are positive trends. However, they also bring about significant challenges for older individuals, communities, and societies.

Joseph Chamie is a consulting demographer, a former director of the United Nations Population Division, and author of many publications on population issues.

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Quelle : © Europäische Union, 2026 - EP

Length of video : 60'

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Source : © European Union, 2026 - EP

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