24/7 Wall St: “Many factors contribute to the health of a population, and worldwide health varies to the extreme. While most Americans are aware that these global health disparities exist, a look at the health outcomes of each country’s population reveals the extent of these massive health differences. In the United States, which has its own well-documented health issues, the average person born today can expect to live to be about 79 years old. In the southern African nation of Swaziland, life expectancy is three decades shorter. It should be noted that the U.S. ranks behind 30 other nations longevity…”