TED talk on menopause and the brain

It’s all so confusing.I was reading up on nutrition and some sites recommend phytoestrogens in the form of soy products etc because they prevent oestrogen binding to receptor sites or some such. Couldn’t really understand but there is so much contradiction in information. If 3/4 of all breast cancers are hormone positive why don’t we have more answers? I don’t want to just accept meekly the degradation of my brain, not to mention my nether regions, now that my oestrogen has been so rudely cut off. But there’s nothing I can do except the usual ‘eat well and exercise.’