It is possible to attain a healthy stature of our body and our being until death.
The bible is a book of wisdom and no wonder that being healthy is a part of wisdom. Third john 1 verse 2 says;
Beloved I wish above all things that thou mayest prosper and be in health,even thy soul prospereth. This is the pronouncement of one of the disciplines of the lord jesus christ century christian church. You will notice that as far back as 200 years ago, ministers of christ like john are concerned about the health of people they are sheperding he said "beloved I wish above all things that thou mayest proper and be health" it is about all things, wealth,prestige,above all things that the servants of the lord jesus christ they pay to be in health even as thy soul prosperity meaning above all the prosperity of the soul secondly,the prosperity of human being to be in health and it may prosper.
Although it is a common knowledge among people,among scientists that has we grow old our health deteriorate. So, according to the bible, the common knowledge of people that health will deteriorate is not the truth. The health of a person can prosper,even as the souls of Christian do prosper by hearing the admonitions of the teachings of God. How can It be possible that your health may prosper of course if it will,if you are not a Christian you may be a victim of addiction I'm alcohol in tobacco and other vices that cause deterioration of health,but accepting the teachings of the lord jesus christ will stop totally all those vices that affect the health and then you may prosper in health.
Now it is possible to stay healthy until death.