The 'Green Lantern' actor - who split from wife Scarlett Johansson in December after two years of marriage - insists he isn't a workaholic, but even in his down time is happy to turn his attention to business calls because making movies is not a difficult profession.
He said: "My hobbies are. work. No, I'm kidding. But I do love to work and my hobby is also my career.
"Am I a workaholic? It depends who you ask. I don't think so. I think when I have time off I really use it, but I work in Hollywood. It's not like I'm a neurosurgeon. I can take a phone call when I'm relaxing."
Ryan admits that as he has gotten older he finds it easier to relax and no longer has to be busy all the time.
He added: "I'm closer to moderation now than I've ever been, but years ago I would have had trouble with that. If it was a vacation I had to climb something or do something, but that's just being younger I think.
"Now I can handle a book and some TV for a while."