- Jul 10, 2004
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Why am I not surprised?
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Ladies, here's one more thing you can blame on men: menopause. At least, that's according to a new theory.
Women go through menopause because men have consistently preferred younger women in recent evolutionary history, according to a study published today (June 13) in the journal PLOS Computational Biology.Thus, menopause is not evolutionarily advantageous and may be the result of a series of random, harmful mutations that accumulated in women but weren't acted on by evolution because the women had already reproduced by the time the mutations affected them.
"Our first assumption is that mating in humans is not random with respect to age, which means men of all ages prefer to mate with younger women," said study co-author Rama Singh, an evolutionary biologist at McMaster University in Canada. "If mating is with younger women, any deleterious mutations which affect women's reproduction later in life will accumulate because they are not being acted on by natural selection."
Hot Flash! Men May Be the Cause of Menopause
*******************************************************************
Ladies, here's one more thing you can blame on men: menopause. At least, that's according to a new theory.
Women go through menopause because men have consistently preferred younger women in recent evolutionary history, according to a study published today (June 13) in the journal PLOS Computational Biology.Thus, menopause is not evolutionarily advantageous and may be the result of a series of random, harmful mutations that accumulated in women but weren't acted on by evolution because the women had already reproduced by the time the mutations affected them.
"Our first assumption is that mating in humans is not random with respect to age, which means men of all ages prefer to mate with younger women," said study co-author Rama Singh, an evolutionary biologist at McMaster University in Canada. "If mating is with younger women, any deleterious mutations which affect women's reproduction later in life will accumulate because they are not being acted on by natural selection."
Hot Flash! Men May Be the Cause of Menopause