Before hormone replacement I had no detectable estrogen in my blood steam. I was having hot flashes so bad that not only was my sleep disrupted but my entire life. I was losing my hair and my eyelashes, my skin hurt and my body ached. My kids called me "prickly" because my moods were so bad. My brain was foggy and I had bladder issues. I told my husband that I thought I was slowly dying. After I started on BHT I felt like I had come alive. My hair grew back, my muscles got stronger and my brain functioning was much much better. I've been on it since I was 51 and I'm 65 now. I plan to be on it for the rest of my life. It's been a life saver for me.