With the Rolling Stones firmly back on the road just two months after Mick Jagger's heart valve replacement surgery -- nobody is more surprised or happier than Ron Wood. Wood, who first toured with the band back in July 1975, spoke about Jagger's amazing recovery, telling Fox News, "He’s just so fit, he sets aside three hours a day to do exercise and that’s done him plenty of favors in later life. He’s superhuman really. Usually if this type of operation is done on a 75-year-old not in retirement they go back behind a desk. They’ve never had a case where the guy hasn’t had a desk job. He’s a medical marvel, is Mick."

When asked if he's seen Jagger taking things a bit more easily since his heart issues, Wood said, "Oh God, he’s even harder to stop now. It’s like, 'Mick, come here, I want to talk to you,' and he’s like all over the place. He’s really in good form."

Ron Wood spoke about how upset Jagger was in having to put the band's tour dates on ice while he dealt with his health issue: "Mick had the knowledge from his doctors that some day he’d have to take care of this problem with his heart -- but he had no idea it would come up this quickly. He called us to his room and said, 'I’ve got to do this now.' He felt so bad about it. We said, 'Don’t feel bad, if it’s got to be done, do it, then we can carry on rocking.' And now we really are ready to rock -- luckily."

The guitarist, who has successfully battled drugs and alcohol over the years, claims that his post-gig ritual these days consists of bringing a bowl of hot soup back to his suite and watching crime documentaries: "With the momentum of youth, you were always chasing a high. The music was high anyway and you want to get higher and higher, so you have a drink, or whatever. You never used to think about it -- it was like keeping the high going."

Wood went on to explain, "Now I can sit back and go, ‘My body is going to collapse if I keep piling it on and do it like you used to.' I’m still very happy. I don’t think I’m missing out on anything, I’m just seeing it a bit more sensibly now. I’m high enough and I’m grateful of that."

A while back, Ron Wood spoke candidly about the highs and lows of his decades of heavy drug use: "I took the good things out of the acid experience, for instance, and I think I did the same with the cocaine -- even though it took much longer to give up. The heroin was. . . I just used to smoke it in cigarettes and, like, phhh -- unbelievable windows that that opened. And I always thought, if I'm in my late-'70s. . . (laughs) Keith (Richards) and I said, if we're in our late-'70s and in pain, we'll take that up again (laughs), y'know? It's the best painkiller there is. But it's all an illusion, really. But it's always damaging you, like cigarettes -- they're the worst ones."

AUDIO: RON WOOD ON DRUG USE