Male Life Expectancy by Anthony Ekanem

Author:Anthony Ekanem [Ekanem, Anthony]
Language: eng
Format: epub
Publisher: Anthony Ekanem
Published: 2016-08-10T00:00:00+00:00

Women also have a slower metabolism than men - a distinction that makes them more prone to obesity. But there may also be an inverse relationship between metabolic rate and life span. Evidence of this link comes from animal studies of food restriction, which slows metabolic processes: in experiments sponsored by the National Institute on Aging, monkeys that ate 30 percent less of the same diet as their free-feeding peers seemed to age more slowly.

Studies of so-called clock genes in microscopic worms have also demonstrated the connection between metabolic rate and life span. Siegfried Hekimi of McGill University has observed that worms with particular mutations in these genes live five times as long as normal animals and have much slower physiological functions. Although it is still not known why men's metabolism rates are faster than women's, it is becoming clear that this difference is present almost from the moment of conception, when male embryos divide faster than female ones. The faster metabolic rate may make men's cells more vulnerable to breakdown, or it may simply mean that the male life cycle is completed more promptly than the female one.

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