What is more important, our bodies or our souls? What has the longest longevity? Our bodies will give out little by little as a natural progression, but our souls live forever.
God cares more about our spiritual health than our physical health and so should we. To God, protecting out soul from eternal judgment and death is more significant than protecting our bodies from disease or death.
Too often, we become disappointed in lack of healing when we pray. I know I did. But, my trust in God must remain strong as I learn His value system and line mine up accordingly.