A woman who takes one of these analogues stops making estrogen.

After all, their risk of heart disease rises in middle age, around the time their ovaries stop making estrogen.

After menopause, the ovaries stop making estrogen, but the other tissues do not.

When the body is making more estrogen than progesterone, it can make the nervous system "excitable."

Treatment to stop the ovaries from making estrogen is called ovarian ablation.

Without it, the body can't make testosterone or estrogen.

These symptoms are caused by the body making less estrogen.

Or perhaps there was some other physical characteristic, as yet unidentified, that made estrogen protect them from heart disease.

Aromasin blocks an enzyme the body uses to make estrogen.

As a consequence, they have been told, they will make less estrogen.