Saturated Fats and Health: A Reassessment and Proposal for Food-based Recommendations: JACC State-of -the-Art Review

[corybroo]

The Grandmother Hypothesis

The grandmother hypothesis states that the long post-reproductive life span in human females would have evolved because women were able to gain more fitness by investing in their adult offspring and grand-offspring rather than by reproducing until old age.

It’s not just is humans:  Postreproductive killer whale grandmothers improve the survival of their grandoffspring

[mccoy]

Good point. Biologically expendable. Socially helpful. Don't know what prevails. Fact remains that when younger my homeostatic glucose mechanism could tolerate almost any abuse. Now it's starting to dysregulate. 

[Ron Put]

On 1/21/2022 at 10:10 AM, corybroo said:

The Grandmother Hypothesis

The grandmother hypothesis states that the long post-reproductive life span in human females would have evolved because women were able to gain more fitness by investing in their adult offspring and grand-offspring rather than by reproducing until old age.

It’s not just is humans:  Postreproductive killer whale grandmothers improve the survival of their grandoffspring

It doesn't make much evolutionary sense to me. How is this different than having an older, but still strong male, who is able to aid the younger males in defending the offspring? In fact, the grandma is unable to further reproduce at some point (and thus pass on more longevity genes), while the grandpa can do it much longer if given the opportunity.

This is similar to the argument of why there is a higher predisposition towards homosexuality among males, as an extra "uncle" in the group who can defend the offspring is more "valuable" than an extra "aunt." My take is it has more to do with higher sexual drive and more impulsive arousal, and the ability to reproduce even if not normally sexually attracted to females.

But the grandma hypothesis is weaker, IMO.

[Ron Put]