I have a co-worker who is in his sixties, but he is in really good shape and does a lot of sports. He looks like he's in his forties but his tendons and ligaments are in really bad shape from years working construction. He asked me about deca durabolin and if it could help him because he is desperate. He knows a little bit about steroids cuz he's used them before but I'm not quite sure what advice to give him here. Like how much dosage should he take