Technological advancement and many researches in science has very positive impacts on human life. It has not only improved standard of life but also life expectancy of the population. Science has improved in all fields like constructions, educations, astrology, zoology and also in the medical field. Advanced in medicine and medical equipments, technology has more benefits than demerits of increase in life expectancy. In my opine, increase in life span would have more positive impact in nations rather than negative.