Abstract After more then 200 years of industrial revolution and growth, the human economy has come to threaten the workings of nature and has put long-term survivorship and demography in great danger. Globally, the world is witnessing unprecedented changes in population structure. Questions arise about environmental problems getting worse, population related diseases increasing, if AIDS continues to increase and no cure is found what happens and if Medical advances continue will most diseases and infant mortality …showed first 75 words of 1273 total…

…showed last 75 words of 1273 total…