Population aging refers to the increasing proportion of older
individuals within a society, resulting from declining birth
rates and rising life expectancy. This demographic shift is a
global phenomenon with significant social, economic, and
healthcare implications.
Global Trends
- Rising Numbers: As of 2020, there were approximately
1 billion people aged 60 years or older worldwide. This
number is projected to reach 1.4 billion by 2030 and 2.1
billion by 2050. World Health Organization (WHO).
- Increasing Median Age: The global median age has
risen from 24 in 1950 to 29 in 2010 and is expected to
reach 36 by 2050, indicating a significant shift towards
older populations.