International Day of Older Persons (2022)

October 1st is the United Nation's Day of Older Persons.  

In 1970 the number of persons age ≥ 60 was approximately 278 million, and by the year 2020 that number had risen to over a billion people.  That number is projected to rise to over 2 billion by the year 2050, with 80% of those people living in low- and middle-income countries.  Life expectancy at birth for a baby born in the world today is age 73.

IMHO the aging of the world's population is humanity's most significant accomplishment, and yet it also presents public health's most pressing challenge in the 21st century- improving the human healthspan (vs  lifespan).

My TedX talk from 2019 on population aging and longevity science:

Cheers, 

Colin