What healthy is called wealth?

Let us discuss and try to understand as to why health is called wealth. According to WHO definition, health is a 'state of complete physical, mental, and social well being, and not merely the absence of disease or infirmity'.

Explanation:

life will not be easy it will be filled with war, lack of resources, damaged planet, and lack of land to live on.

i imagine life will be easier in the sense that we will have better technology and better health and medical advances as well as infustructure growth and economic resilliance we will have much stronger militaries and probably be constintly fighting with other countries for resources and lang that is actually cleanenough to live or farm on . as well i think the need for fresh water will only brainliest answer lol

im not to sure