Older people can remember what it was like to be young. Younger people, on the other hand, cannot know first hand what it is to be or grow old. They can only see others around them and get some sense of the struggles, imagining themselves to be immune to those.
In your experience, what is it like to be or grow old (whatever your definition of old is) from the physical health aspect and the general frailty of the aging human body?
What are the health related struggles that have come into your life or have gotten worse because of increased age and how have you dealt with them?
With your experience and knowledge, what would you advise younger people (or even your own younger self of decades past, if you could)?