I didn't watch the video but users often say steroids aren't addictive. Not like a narcotic, sure, but they are still reinforcing because they can make you feel real good via effect on neurotransmission and so on. I haven't ever gone off totally, though I've seen some buddies say it's somewhat of a relief to go clean, you sleep better and aren't as agitated etc. Plus the mad sex drive isn't great always. Frustration and bad decisions wrt women.
I wonder what all-natural supplements Mike’s addicted to. Creatine? HMB? 
I've seen something very briefly where he's sort of building up to an admission regarding steroid use. He can get fucked. What's really pissed me off is other steroid users entertaining the idea that Mike could be natural, absolute retards.