Yes, of course, it is inevitable, but what we can control are our positive (or destructive) actions in the now that inevitably define our future in a certain way, that is why I wanted to focus on diet and exercise, it is not the same to reach 70 years old and never have done any exercise in your life, than to reach 70 years old with sports routines that benefit you. It makes me feel motivated to see elderly people doing physical activities, near where I live there is a park and every morning a fairly elderly lady goes and does stretches and squats, it is something that I find admirable.