@fili123: I am 74. I was taken off my .025 estrogen patch 7 years ago, at age 66 & 1/2, as I was diagnosed with breast cancer. Even though there are no definitive studies to prove it, I won't go on Forteo because it promotes bone growth, and I worry that mechanism could somehow also promote any dormant cancer cells in my body to grow as well. But I was on it years ago in my 50s, never had a side effect, and my results were stellar. I am now on Prolia which slows bone breakdown.