It's a combination of both. The book alone wouldn't have made me motivated to workout. The catalyst was obviously the health scare, but what the book did was to

It's a combination of both. The book alone wouldn't have made me motivated to workout. The catalyst was obviously the health scare, but what the book did was to help me get regular and build upon my habit. The book essentially tells you that a small step is all that is required and not to give up in case you miss one or two days. Making something a habit takes time. I started small. 15 mins a day. Gradually it increased. Would I have continued working out even without having read the book? Yes. Did the book help? Yes.