I have not started them. The main reason HRT is so hailed by the medical profession is its dramatic decrease in deaths due to heart disease in post-menopausal women. In addition, it can cut the rate of fractures from osteoporosis by half as well. These are at a cost of a small risk increase in breast cancer and endometrial cancer. Keep in mind that this is for the average woman, each woman may have higher or lower risks for all these diseases.
Heart disease kills many more women than female cancers.
It is said the women in Japan and in China fare much better than western women in menopause. Still, soy is thought to be a major factor. As little as one serving per day can help. My bone density has increased and sex less painful. As long as you do not develop complications, there is not a set limit according to the research as we now know.