Thanks for the right up TtR. Very informative.
So a woman who is very attuned to her body can "know" that she is highly fertile starting from when she experiences cramps up to the time she menstruates? And somewhat fertile for as long as 7 days before the cramps because of the long shelf life of sperm?
TtR, do you have any thoughts about how evolutionary factors influence which egg ends up being fertilised? With sperm there are zillions, and it is clear there is a sort of battle between them, and the most "fit" end up fertilising the egg. Do you think something similar happens with eggs? There are obviously far fewer eggs, but even if a woman is constantly pregnant during her lifetime only a small portion of her eggs will be fertilised. Is there any indication of a selection mechanism that allows the most fit eggs to be the ones that are fertilised?
So a woman who is very attuned to her body can "know" that she is highly fertile starting from when she experiences cramps up to the time she menstruates? And somewhat fertile for as long as 7 days before the cramps because of the long shelf life of sperm?
TtR, do you have any thoughts about how evolutionary factors influence which egg ends up being fertilised? With sperm there are zillions, and it is clear there is a sort of battle between them, and the most "fit" end up fertilising the egg. Do you think something similar happens with eggs? There are obviously far fewer eggs, but even if a woman is constantly pregnant during her lifetime only a small portion of her eggs will be fertilised. Is there any indication of a selection mechanism that allows the most fit eggs to be the ones that are fertilised?