If Christians Believe God Answers Prayer, Then Why Do They Buy Health Insurance?

Questions about why Christians buy health insurance if they really believe God answers prayer and whether or not one should end all prayers about desires for a spouse with “If it be your will.” Why do Christians buy health insurance? Don’t Christians believe God answers prayer? If God loves you and cares about you, then he certainly wants you to be healthy, correct? Should I end all my prayers about desires for a spouse with “If it be your will”? Should I consider the possibility of God not giving me the spouse?