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Ageing in the Twenty-First Century: - HelpAge International

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Discussions with older people <strong>in</strong> South Africa, for<br />

example, showed that <strong>the</strong>y associated old age both with<br />

experience ga<strong>in</strong>ed <strong>in</strong> life and <strong>in</strong>creas<strong>in</strong>g dependence<br />

on o<strong>the</strong>rs. Chronological def<strong>in</strong>itions of old age were not<br />

viewed as so important <strong>in</strong> signify<strong>in</strong>g old age as changes<br />

<strong>in</strong> physical and mental capacity. 5<br />

Older persons are a highly diverse population group,<br />

<strong>in</strong> terms of, for example, age, sex, ethnicity, education,<br />

<strong>in</strong>come and health. It is important to recognize this<br />

<strong>in</strong> order to adequately address <strong>the</strong> needs of all older<br />

persons, especially <strong>the</strong> most vulnerable.<br />

Why is <strong>the</strong> world age<strong>in</strong>g?<br />

Population age<strong>in</strong>g is occurr<strong>in</strong>g because of decl<strong>in</strong><strong>in</strong>g<br />

fertility rates, lower <strong>in</strong>fant mortality and <strong>in</strong>creas<strong>in</strong>g<br />

survival at older ages. Total fertility dropped by half<br />

from five children per woman <strong>in</strong> 1950-1955 to 2.5 children<br />

<strong>in</strong> 2010-2015, and it is expected to cont<strong>in</strong>ue to decl<strong>in</strong>e.<br />

Life expectancy at birth has risen substantially across<br />

<strong>the</strong> world; it is not just a developed world phenomenon.<br />

In 2010-2015, life expectancy is 78 years <strong>in</strong> developed<br />

countries and 68 years <strong>in</strong> develop<strong>in</strong>g regions. By<br />

2045-2050, newborns can expect to live to 83 years <strong>in</strong><br />

developed regions and 74 years <strong>in</strong> develop<strong>in</strong>g regions.<br />

While overall <strong>the</strong> world is age<strong>in</strong>g, <strong>the</strong>re are differences<br />

<strong>in</strong> <strong>the</strong> speed of population age<strong>in</strong>g. It is happen<strong>in</strong>g fastest<br />

<strong>in</strong> <strong>the</strong> develop<strong>in</strong>g world (Figure 2). Today, almost two <strong>in</strong><br />

three people aged 60 or over live <strong>in</strong> develop<strong>in</strong>g countries,<br />

and by 2050, nearly four <strong>in</strong> five will live <strong>in</strong> <strong>the</strong><br />

develop<strong>in</strong>g world.<br />

Around 1900, average<br />

life expectancy was<br />

between 45 and 50<br />

years <strong>in</strong> <strong>the</strong> developed<br />

countries of that time.<br />

Now, life expectancy<br />

<strong>in</strong> developed countries<br />

reaches 80 years.<br />

gure 2: Number of people aged 60 or over: World, developed and develop<strong>in</strong>g countries, 1950-2050<br />

Figure 2: Number of people aged 60 or over:<br />

World, developed and develop<strong>in</strong>g countries, 1950-2050<br />

2,500 million<br />

2,000<br />

Developed countries<br />

Develop<strong>in</strong>g countries<br />

1,500<br />

1,000<br />

500<br />

0<br />

Source: UNDESA, World Population<br />

<strong>Age<strong>in</strong>g</strong> 2011 (2012; Developed forthcom<strong>in</strong>g), countries based<br />

on UNDESA Population Division medium<br />

projection scenario, Develop<strong>in</strong>g World Population countries<br />

Prospects: The 2010 Revision.<br />

Note: The group of “developed countries”<br />

corresponds Source: UNDESA, to <strong>the</strong> World “more Population developed <strong>Age<strong>in</strong>g</strong> 2011 (2012; forthcom<strong>in</strong>g)<br />

based on UNDESA Population Division medium projection scenario<br />

regions” of <strong>the</strong> World Population Prospects:<br />

World Population Prospects: The 2010 Revision.<br />

The 2010 Revision, and <strong>the</strong> group<br />

Note: The group of “developed countries” corresponds to <strong>the</strong> “more<br />

“develop<strong>in</strong>g countries” corresponds to<br />

developed regions” of <strong>the</strong> World Population Prospects: The 2010<br />

<strong>the</strong> “less Revision, developed and <strong>the</strong> group regions” “develop<strong>in</strong>g of <strong>the</strong> countries” same corresponds to <strong>the</strong><br />

publication. “less developed regions” of <strong>the</strong> same publication.<br />

1950<br />

1955<br />

1960<br />

1965<br />

1970<br />

1975<br />

1980<br />

1985<br />

1990<br />

1995<br />

2000<br />

2005<br />

2010<br />

2015<br />

2020<br />

2025<br />

2030<br />

2035<br />

2040<br />

2045<br />

2050<br />

21

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