Dear friend, this is coming from someone who is 85 years old heading 86. As a rule, by age 80, practically everyone has physical (and sometimes mental) problems that will worsen exponentially with age. Someone expressed it very well on Quora: After 80, "we peer into the abyss." I don't think (for the moment) anyone who is 80 can be considered "young."
Let's look at the numbers, which refer to Spain, one of the countries with the highest life expectancy in the world. Using data from the National Institute of Statistics from 2023, I created a table of deaths by age in Spain, without distinguishing between sexes.
The image reflects the results obtained. According to my basic table of 100,000 births, 62,830 people reach 80 years of age, 46,662 reach 85 years of age, and 26,879 reach 90 years of age. This means that the probability of an 80-year-old reaching 85 is 46,662/62,830 ≈ 74.3%, and the probability of reaching 90 is 26,879/62,830 ≈ 42.8%. Can an 80-year-old with less than a 50% chance of living another 10 years be considered 'young'? (Even internally one feels that way).
Obviously this only is a statistitical approach. At 80 y/o additional life expectancy will depend on genetics, past and current lifestyle, health history…and luck.
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