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The grandmother hypothesis is a hypothesis to explain the existence of menopause in human life history by identifying the adaptive value of extended kin networking. It builds on the previously postulated "mother hypothesis" which states that as mothers age, the costs of reproducing become greater, and energy devoted to those activities would be better spent helping her offspring in their ...
The Grandmother hypothesis suggests that menopause was selected for humans because it promotes the survival of grandchildren. According to this hypothesis, post-reproductive women feed and care for children, adult nursing daughters, and grandchildren whose mothers have weaned them.
The grandmother cell hypothesis is an extreme version of the idea of sparseness, [22] [5] and is not without critics. The opposite of the grandmother cell theory is the distributed representation theory, that states that a specific stimulus is coded by its unique pattern of activity over a large group of neurons widely distributed in the brain.
Finally, Williams' 1957 paper was the first to outline the "grandmother hypothesis". William's formulation stated that natural selection might select for menopause and post-reproductive life in females (though not explicitly mentioning grandchildren or the inclusive fitness contribution of grand-parenting).
Research shows that grandmothers are living longer, healthier lives with more energy to spend on grandchildren.
The recession of 2020, was the shortest and steepest in U.S. history and marked the end of 128 months of expansion. Key Predictors, Indicators and Warning Signs of a Recession
The Grandma McFlurry was created to bring back feelings of childhood nostalgia and good times at Grandma's house. At least, that is what McDonald's was aiming to achieve when working on the flavor.
The Grandmother Hypothesis states that menopause comes about into older women in order to restrict the time of reproduction as a protective mechanism. This would allow women to live longer and increase the amount of care they could provide to their grandchildren , increasing their evolutionary fitness. [ 43 ]