The there is a lot of interest in extending the life span of humans with pharmaceutical companies in a race to produce drugs which will have us living to well over 100 years on average. Yet in spite of all the hype we are not any closer in part because of the incredible complexity of the task. In fact after several generations of increasing life span, we are now faced with the current young generation having shorter lives due largely to diet. In the past extending human life was relatively easy, clean water, clean food and clean safe shelter. Even though this hasn't been achieved worldwide, at least in the developed world we have been able to ensure these life basics and therefore life has extended dramatically in a relatively shorty time.
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