Life Span Extension

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Life Span Extension

Introduction

Opinions about life-span extension range from the optimistic, fanciful thinking of Ben Bova, a noted science fiction writer, who wrote: "The first immortal human beings are probably living among us today.

Discussion

Biblical, mythological, and other works frequently refer to long-lived human populations living at some remote time or place, typically during some "Golden Age" of humankind(Brouilette, 107). References to long-lived populations in such far away places as Vilcabamba, Ecuador, the Himalayas, or Soviet Georgia are numerous, but are typically the result of sheer fabrication. Such reports are not scientific and have always failed to be verified(Chang, 882). For example, those from the Asian state of Georgia were probable fabrications put in place to elude the Czar's draft during the Crimean War, or for other reasons, and were maintained by the Soviet Union for political purposes(Epstein, 221).

Interventions that lead to a longer life span have been sought for ages. There is a huge amount of money to be made by selling over-the-counter drugs, dietary supplements, and nutraceuticals that claim some effect on life extension. Numerous companies and scientists are trying to develop dietary interventions that will prolong life. As of this writing however, there is no scientifically validated dietary supplement that has a significant effect on human longevity(Gensch, 67). One should be very careful before purchasing any agents that propose to extend longevity, and even more careful before consuming such a product. The FDA does not regulate dietary supplements, health foods, and nutraceuticals, and some of these agents could have a significant negative effect on one's health; others may be addictive.

Limiting total food intake, however, does have some beneficial effect. Around 1930, Clive McCay discovered that feeding rats a diet complete in vitamins and minerals, but low in total calories, resulted in a prolonged period of life. Since then, numerous ...
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