Andrew Huberman· PhD
menopause by definition, which I hate, is 12 months without a period. So menopause is one single day in time. Really, it means you've been in ovarian failure for 12 months before you'll magically get this diagnosis. But menopause at its purest is ovarian failure. The ovaries no longer have the capability to respond to the brain signals. You're not going to make estrogen or progesterone anymore.