Even though the United States government spends more on healthfare and welfare than any other in the world certain problems do exist in America. Two-thirds of all Americans are overweight. The United States has a higher infant mortality rate than other first world countries. It seems there is a perfect storm of bad family practices (how many children are raised by single parents?), bad culture (poor food choices), bad government policies (waste), and insurance red tape.
Meanwhile the lowest area of life expectancy is in Sub-Saharan Africa. Swaziland has an average life expectancy of 34.1 years due to AIDS and other negative aspects.