A former Navy SEAL, who lived a warrior-lifestyle for most of his life, just revealed that he's transgender. He has started living as the woman she feels she is. A biography of her life was just published. A summary of her story is here.
Some people are surprised when they learn of stories like this. It really isn't unexpected, however. When society tells you that your true self isn't acceptable, you do the best you can to fit in -- and, for many transgender folk, that means adopting a conventional persona. There is a psychic cost to this, of course; suppressing your true nature doesn't make it disappear and can lead to many bad things. Some of us, at some stage in life, realize we have to be ourselves no matter what the cost. That's when we cross our fingers, make changes to our life and hope for the best.