Well in the Pumping Iron's DVD there's an interview with Arnold where he speak about the reality of that time. When he talks about steroid use at that time, of course he says he used steroids; as a mode of example he says "we used to take 5 anabols a day". Of course we know Anabol are ht eclassic pink dbols...and 5X5 are 25mg a day. But there are others factors that contribute to made those "perfect bodies". It was lifestyle. Life at those years was wonderful. The day was way slower than today. A young male with a good part time job was enough to pay a cheap rent and his food. The "credit cancer" didn't exist at those years like today. Those guys spent hours at the gym, talking and training very hard. And the training routines were very different from today. Today's freak monsters doesn't have for example chests even closer to Arnold's. And that's something Arnold says in the interview. The training, the intensity, the passion, the concentration was 100% real. Today, we just don't have time for that. Unless you live from walfare. Diet, was good enough to build muscle. Today we have monsters eating tons of food every day only to look freak and not proportioned. Anyway, it was a very different world.