Download e-book for iPad: Ancient Bodies, Modern Lives: How Evolution Has Shaped by Wenda Trevathan Ph.D.

By Wenda Trevathan Ph.D.

ISBN-10: 0195388887

ISBN-13: 9780195388886

Winner of the 2011 W.W. Howells e-book Award of the yank Anthropological Association

How has bipedalism impacted human childbirth? Do PMS and postpartum melancholy have particular, even perhaps useful, features? those are just of the numerous questions that experts in evolutionary drugs search to reply to, and that anthropologist Wenda Trevathan addresses in Ancient Bodies, Modern Lives.

Exploring quite a number women's healthiness matters that could be seen via an evolutionary lens, particularly concentrating on replica, Trevathan delves into matters comparable to the scientific outcomes of early puberty in women, the effect of migration, tradition switch, and poverty on reproductive healthiness, and the way fetal development retardation impacts well-being in later existence. Hypothesizing that a few of the well-being demanding situations confronted through girls this day outcome from a mismatch among how their our bodies have advanced and the modern environments within which sleek people reside, Trevathan sheds gentle at the strength and strength of analyzing the human existence cycle from an evolutionary point of view, and the way this may increase our realizing of women's overall healthiness and our skill to confront well-being demanding situations in additional artistic, powerful ways.

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Additional resources for Ancient Bodies, Modern Lives: How Evolution Has Shaped Women's Health

Sample text

Maybe there are better ways to minimize breast cancer risks. As is commonly known, early childbearing often repeats itself in subsequent generations in that young women who begin reproducing in their teens often have grandchildren before they reach the age at which some (usually more affluent) women are having their first babies, in their early to mid-thirties. As noted, early childbearing is often associated with unpredictable life circumstances: unequal access to resources and medical care is a major contributor to psychosocial stresses and life course instabilities.

One of the best examples can be seen in the contemporary diets that are often mismatched with evolved nutritional needs. I am particularly concerned about ways in which contemporary reproductive behavior and biology may be mismatched with the reproductive lives of our ancestors, and that may result in negative consequences for health, particularly for women. One familiar example is the dozens of menstrual cycles women in health-rich populations have each year, whereas before the use of birth control, women had very few menstrual cycles.

Furthermore, the amount of leptin is inversely related to age of menarche, suggesting that fat accumulation on the hips and buttocks may be the trigger for menarche. Lassek and Gaulin also argue that hip and buttocks fat are the primary sources of fatty acids that are passed from the mother to the fetus during gestation and the infant during lactation. These long-chain polyunsaturated fatty acids (LCPUFAs) play a major role in brain development. Thus, they argue, hip and buttocks body fat does not just signal overall energy availability for pregnancy but also signals that the essential fatty acids for brain development are in sufficient supply.

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Ancient Bodies, Modern Lives: How Evolution Has Shaped Women's Health by Wenda Trevathan Ph.D.

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