Hi,
Great post. I think the one thing that all of us want is to be happy. Where we all diverge is 'what' makes us happy.
I think life is about finding the right balance between career or business, family, friends, home, free time, physical environment (location of our home on the planet), political stability, etc.
But you are right to point out that underpinning all of that is health. If you are in chronic pain, or even just don't feel physically good it will undermine all the other facets of life, no matter how great they may be.
For a person who already enjoys good health they need to acknowledge that they need to take measures to preserve it. We all have a basic idea what is good for us and what is not. The results of our actions, good or bad, accumulate over time, so do the little things that promote your health on a daily basis. And monitor your body, if it's complaining find out why and address what needs to be done.
Life is about balance.