While for decades, the human lifespan has been calculated at about 89 years, human lifespan began to increase markedly in the 1970s and pushed the limits of life expectancy. This increase in human life expectancy is believed to have been aided by the medical breakthroughs that have occurred since the 1960's.

Biologists believe that life span has increased to 97 years and will continue to to rise over the coming years. This will undoubtedly impact society:

The policy implications of bounded life expectancy are indeed quite different from unbounded life expectancy. In a world of bounded life expectancy, we would continue compressing morbidity, living healthier and healthier lives, but facing rapid aging in the last years of our life. Our life cycle decisions, like how much education to get and when to retire, would in fact become much more plannable

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