If it is true that...

Interactions between estrogen and unsaturated fats contribute to the aging process

and

Exposure to estrogen in middle-age increases the risk of Alzheimer's disease in old age

Then it must be true that...

Alzheimer-type dementia is different from other dementias, but it overlaps with them, and with age-related and stress-related changes in other organs

If it is true that...

Exposure to estrogen in middle-age increases the risk of Alzheimer's disease in old age

Then it must be true that...

Alzheimer-type dementia is different from other dementias, but it overlaps with them, and with age-related and stress-related changes in other organs

If it is true that...

Exposure to estrogen in middle-age increases the risk of Alzheimer's disease in old age

Then it must be true that...

Even medical progestogens offer some protection against Alzheimer's disease