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Improvements in medicine and nutrition have led to longer lifespans, with an estimated 400 million people reaching 80 or older by 2050. The world’s population is projected to increase 3.7 times by 2050, but the population of those aged 80 and older will increase 26 times. Aging populations bring new challenges, as 92% of the elderly suffer from at least one chronic disease. Women outlive men by 6-8 years on average, and the probability of living to 100 has increased for women in developed countries.
As modern medicine and nutrition continue to improve, people are living much longer lives around the world. It is estimated that nearly 400 million people will reach the age of 80 or older by the year 2050. In 1955, the world’s average life expectancy was just 48 years and has so far increased by two decades. It is projected to increase by about another decade, to 76 years, over the next half-century. This represents an incredible change in the demographics of the population. From 1950 to 2050, the world’s population as a whole is projected to increase 3.7 times, but the population of people aged 80 and older is projected to increase 26 times. Population aging will bring new challenges to the world, as approximately 92% of the elderly suffer from at least one chronic disease (such as diabetes, heart disease or cancer).
Read more about aging:
One in four adults over the age of 85 will experience dementia or another form of mental disorder.
On average, women outlive men by six to eight years.
It has been estimated that, for women in developed countries, the probability of living to 100 people has increased over the course of human history from 1 in 20 million to 1 in 50
