The weakest and most common form of estrogen found in the human body, especially in postmenopausal women.
From 'estrogen' plus '-one' (chemical suffix for ketones). Named in 1929 when it was isolated as the first estrogen compound ever identified.
Estrone is sneaky—it becomes more important as women age, since fat cells can actually produce estrone from other hormones, which is why postmenopausal women's bodies shift to relying on it.
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