Just a thought, but Arnold had open heart surgery some years ago to repair something but not sure of the exact procedure. Stallone has been a known HGH user for several years now, so I am not surprised by how he looks at his age. Just a guess, but has Arnold ever admitted to HGH use? Im just curious as I havent heard him admit it but has admitted to steroid use more than once, although he was not fully truthful about dosages and which steroids he used most of the time. I believe test, D-Bol, primo and maybe anavar were the ones he did mention he used in very small doses late in contest prep. I doubt that is true but he may have added primo late or possibly the anavar, but who really knows?? I would think that Pro wrestlers are a prime example of the use of rec drugs and pain killers, cocaine, and whiskey were quite common as I had a buddy who wrestled on television who told me this. Ironically he died at 42 from a workplace accident as opposed to the way a lot of those guys do...either way, I wish he was still around. Good guy.