> Nearly two-thirds of Americans with Alzheimer’s disease (AD) are women, but the reasons why women are more vulnerable are still not fully understood.

Women live much longer and more comfortable lives. Men are more likely to die before alzheimer can even manifest.

Memory is environment-associated. Which is to say, these memories that you have are connected to the environment that you find yourself in. Change your environment and your memory, to a degree proportional to the environment change, breaks.

This is why sometimes you enter a room and forget why you came in.

This can explain the phenomenon referred to in the op. A woman enters a room devoid of estrogen and her memory breaks.