Here that phrase of yours that says that life cannot be lived by default makes great sense. Youth is the vigorous stage in which we do everything or almost everything we want with our body, but, it is the stage in which we can do it and it is necessary to do it to the maximum.
Either way, the passing of the years will bring problems that come in the calendar package.
As for hiding health problems I don't like to do that because it would be hiding a problem that kills me physically and mentally. For example: talking about my prostate problem allowed me to discover the disease in time and that, as serious as it is, I lead as peaceful a life as possible.
The other problem with this is that sometimes people avoid talking about it, but when the condition worsens, it is too late for any solution.
Happy journey.
Cheers and best regards