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Oct 22, 2025

4 min

What is the definition of expectancy and birth rate? A guide to key demographic indicators

Globally, the average life expectancy at birth reached 73.3 years in 2019, while birth rates have been in decline across many countries. Understanding **what is the definition of expectancy and birth rate** is fundamental to interpreting these and other major demographic trends affecting the world's population.

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Oct 22, 2025

4 min

Can you determine life expectancy from a population pyramid?

According to the National Council on Aging, nearly 58 million Americans are 65 and older, a demographic trend that population pyramids illustrate. The shape of these demographic charts offers critical insights, but can you determine life expectancy from a population pyramid?

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Oct 20, 2025

5 min

What does it mean if a population is graying? A demographic shift explained

Globally, the number of people aged 60 and over is projected to more than double by 2050, profoundly impacting societies. So, **what does it mean if a population is graying**, and why is this demographic shift so significant?

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Oct 19, 2025

4 min

What is the definition of an aging population? A comprehensive guide

The World Health Organization reports that the number of people aged 60 years and older is projected to nearly double from 1.1 billion in 2023 to 2.1 billion by 2050. This represents a significant demographic trend known as an aging population, which is reshaping societies across the globe.

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Oct 18, 2025

4 min

Why Is the Percentage of Older People on the Rise in the United States?

Between 2010 and 2020, the U.S. population over 65 saw its largest and fastest growth in over a century, a trend driven by shifts in life expectancy and birth rates. In this article, we'll explore the demographic forces answering why is the percentage of older people on the rise in the United States.

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Oct 14, 2025

4 min

What is Japan doing to increase birth rate? Policies, Progress, and Future Challenges

With Japan's number of births reaching a record low in recent years, the government has declared the period until the early 2030s as the "last chance" to reverse the trend. This has spurred a comprehensive effort to address the crisis, prompting many to ask, "What is Japan doing to increase birth rate?"

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