Number of pregnancies tied to aging process in post menopausal women: Study
Pregnancy is characterized by extensive, energetically-costly changes across numerous physiological systems. These 'costs of reproduction' may accumulate with each pregnancy, accelerating biological aging. Despite evidence for costs of reproduction using molecular and demographic measures, it is unknown whether parity is linked to commonly-used clinical measures of biological aging.
According to a recent study, published in Scientific Reports, number of times a person gives birth may affect how quickly they age. "Pregnancy and breastfeeding are accompanied by shifs in immune function, energy metabolism and storage, blood pressure and volume, and hormone levels and receptor expression. Evolutionary theory predicts that these changes create functional or energetic constraints to somatic maintenance and repair, leading to accelerated biological age—a tradeof referred to as 'costs of reproduction."hypothesized the research team.
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