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Articles related to focusing on healthy aging, prevention, mobility, cognition, nutrition, independence, and caregiving support.

Oct 19, 2025

5 min

How to calculate aging population? Comprehensive Guide to Demographic Indicators

According to the UN, the old-age dependency ratio is one of the most widely used measures of population aging. Understanding how to calculate aging population involves looking at key demographic indicators beyond simple numbers. This guide breaks down the essential methods for precise demographic analysis.

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Oct 17, 2025

3 min

Which country has the most old age population?

As of September 2024, Japan consistently ranks as the country with the most old age population, with a significant portion of its citizens aged 65 or older. This trend, where a country's average age rises due to longer life expectancy and low birth rates, is transforming societies across the globe.

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Oct 15, 2025

4 min

How to calculate old age index and understand its significance

The worldwide population is projected to have 1.5 billion people aged 65 or older by 2050. Understanding how to calculate old age index is critical for demographers, policymakers, and social planners to assess the societal implications of an aging population. This index measures the ratio of elderly people to younger segments of the population, providing insights into potential economic and social pressures.

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