Estrogen, 3rd EditionESTROGEN CAN CHANGE YOUR LIFE HRT (hormone replacement therapy) is the most effective way to challenge the physical changes that occur at menopause. When it is taken correctly, it is not only safe but it can actually protect you against health risks. Not every woman needs HRT but if you do, there's no reason to be afraid of it. In this book, extensively revised to highlight the latest findings, one of the country's top authorities on women's health