The fact is that it's just not realistic for a 40 year old man to make that kind of physical improvement.

Your natural testosterone level starts dropping when you hit your 30s. And that's for your average Joe.

Boxers have it worse, because it's found that with all the punches they take to the head, their pineal gland is damaged and their testosterone levels end up being similar to a much older man's.

Do I think a 40 year old man who has taken over 20 years of blows to the head can put on that much muscle naturally, all the while undergoing an incredibly taxing cardiovascular training camp? No, I don't believe that for a second.