Age and aging

So you're over thirty,  thats the age when, if you are lucky , you have about 20 years left without major health problems.
Are you doing the right thing during your time you have left?

Change

There seems to be obsession with change. Change is to be demanded when things are not working and improvement is possible.
When things work quite well, wishing for change is rather a sign of one's own instability and lack of content.