Cellular Aging Additional Theories Wearand Tear Theory

This theory postulates that ordinary insults and injuries of daily living accumulate and thus decrease the organism's efficiency (e.g., loss of teeth leads to starvation). Although there is little question that some wear and tear plays a role in mortality risk and individual life span, this theory has been rejected by most gerontologists as a more general explanation for aging because (i) animals raised in protected environments still age; (ii) many of the minor insults that accumulate are essentially time dependent and thus cannot logically serve as an underlying causal mechanism of the aging process; and (iii) the theory is outdated inasmuch as cellular and molecular advances point toward more specific mechanisms.

How To Add Ten Years To Your Life

How To Add Ten Years To Your Life

When over eighty years of age, the poet Bryant said that he had added more than ten years to his life by taking a simple exercise while dressing in the morning. Those who knew Bryant and the facts of his life never doubted the truth of this statement.

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