What is the life expectancy of U.S. citizens and what is the leading cause of death in the U.S.? The U.S. Department of Health & Human Services (HHS) publishes vital statistics on U.S. deat
What is the life expectancy of U.S. citizens and what is the leading cause of death in the U.S.? The U.S. Department of Health & Human Services (HHS) publishes vital statistics on U.S. deat