Longevity Impact

It is considered that a person's life span is largely determined by the combined effects of genetics and environmental factors. Lifestyle choices, particularly diet, exercise and smoking habits, play an undisputed role in determining not only how long one will live, but also how well one ages.

 Some studies suggest that the life span only in 22-30% is acconted for by genetic factors https://www.scientificamerican.com/article/genetic-factors-associated-with-increased-longevity-identified/, http://demogr.mpg.de/publications%5Cfiles%5C2942_1202133488_1_fulltext.pdf  Swedish study finds claims lifestyle affects life expectancy more than genetics https://www.sciencedaily.com/releases/2011/02/110207112539.htm. However, some recent studies indicate that genes are more important than lifestyle for longetivity https://www.scientificamerican.com/article/genetic-factors-associated-with-increased-longevity-identified/

 

8.5 percent of people worldwide (617 million) are aged 65 and over. According to a new report, “An Aging World: 2015” https://www.census.gov/content/dam/Census/library/publications/2016/demo/p95-16-1.pdf this percentage is projected to jump to nearly 17 percent of the world's population