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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 allele for slowing life history and extending longevity is not on the Y chromosome. To date a ‘longevity’ gene(s) is still elusive. However, INK4a/ARF situated on the human chromosome 9p21 does appear to act as a tumour suppressor [10] therefore extending longevity. [11] Increasing the ovarian follicular reserve is difficult.
"The first 1000-year-old is probably only ~10 years younger than the first 150-year-old."–Aubrey de Grey, 2005 [1]. In the life extension movement, longevity escape velocity (LEV), actuarial escape velocity [2] or biological escape velocity [3] is a hypothetical situation in which one's remaining life expectancy (not life expectancy at birth) is extended longer than the time that is passing.
Here’s an important distinction to make, per Dr. Goldman: Perimenopause is a stage, while menopause is a single moment that you reach exactly 12 consecutive months after your last menstrual period.
Menopause: You've officially reached menopause once you've gone a full year without having a period. Postmenopause: You'll stay in postmenopause for the rest of your life, and it's frequently ...
Exercise: With menopause comes weight gain and more belly fat, Tang says, and that's due to all the metabolic changes going on with your body. If you start to notice the pounds packing on, she ...