It think it's important to differentiate between life expectancy and quality of life. If you're a tub of good and sedentary, you might spend the last 10% of you

It think it's important to differentiate between life expectancy and quality of life. If you're a tub of good and sedentary, you might spend the last 10% of your life trapped in a failing body, which can very much tank your quality of life, whereas the fit person might actually be able to enjoy the golden years. I feel that's something that often is overlooked when talking about pure life expectancy.