>Hi Paleophiles,
>I believe this was discussed before but I can't remember the value to the
>tribe that all the women have their periods at the same time.
>My daughters and I have found this to be true-we are all on the same cycle,
>but why?
>
>Paleobest,
>Susan

I think it harks back to when we had seasonal heat cycles. Humans are the
only species - or do apes also? - to have monthly, year-round cycles. One
interesting side effect of domestication of animal species is that the
domesticated ones all seem to have more frequent estrus; I wonder if that
applies to us?

Much of my interest in Paleo ways revolves around seasonal light changes,
and the changes in physiology and diet that accompanied our mastery over
light and weather changes.

In any case, the value of a seasonal heat is obvious when you consider the
abundance of food in late summer and autumn and the long cold winter, with
lots of sleeping, to grow the fetuses.

Interestingly, domestic dogs still are programmed to breed right after a
big meal, and this is often used to get a stud to mount. Mine always asks
for "relief" after dinner, and then he goes into a corner and rummages and
scratches around to "make a nest" for the pups.

ginny

All stunts performed without a net!