And the worse of it all, I suspect that it is because of abuse of nonsteroidal anti-inflamatory medicine like Ibuprofen, Advil, and Naproxen. They are usually the first thing forbidden to chronic ulcer sufferers because they cause new ulcers and worsen flare-ups. They are overall really bad for the intestines. My guess is that Tyson's training has put him in a lot of pain and the painkillers gave him this ulcer. He is fantastic and has an extraordinary physique for someone his age, but no one is immune to old age.