I hear what you're saying John and I appreciate your concern. My EF is right at normal at 54% and the damage to my heart muscle diagnosed 6 years ago was very minimal and could have been caused in childhood. If my heart is at the same function it was at 6 years ago and I have been on a low dose 14 week cycle, then it doesn't appear that it is affecting my heart. However if I continue the AS use, I will keep it a low dosages and I will keep my heart monitored often. Thank you for you thoughts on this. I will definitely get more unbiased proffesional advise before I continue.