Michael Strahan Reveals Secrets to His Success and Happiness

The former New York Giant releases his new book, "Wake Up Happy: The Dream Big, Win Big Guide to Transforming Your Life."
6:10 | 10/13/15

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Transcript for Michael Strahan Reveals Secrets to His Success and Happiness
And now we'll turn to Michael Strahan. He's got a brand-new book "Wake up happy: The dream big, win big guide to transforming your life." It is out today. We went to golf and body, new York City, to talk about his rues for staying happy and squeeze in a little practice. ? A lovely ? Reporter: So what does this song and golf tell us about Michael Strahan's new book? It turns out a lot. He writes that both keep him waking up happy. Look at this cover. You're smiling and happy. Uh-huh. You say wake up happy. It sounds like an order despite your smile. Yeah, I'm ordering, you George. Reporter: It's a memoir and how to guide to happiness. 18 rules he's learned along the way. Like rule number one, help can and will come from the most unexpected places. This is something I can't even imagine. I'm trying to get the picture in my head. Michael Strahan working out to Jane fonda videotapes. Yeah, Jane fonda saved my life, George. Jane fonda -- it was very unlikely because I was a chubby kid. My brothers called plea bob which meant booty on back. My booty was so big and I found Jane fonda tapes because she did because, by the way, pow, I St six-pack. So it's, you know, god love him for trying -- lso, kate,s he's not training for a movie and so he lets himself go. You can't keep in that shape all the time. I this I if you look at the so ft photo of him with the little sort of belly bib that he had going there, the bigger problem is he's holding a cigare itten his hand if you ask me. Everybody is allowed to have a day in which you look like that. Have ageur B tr nheht big and, you know, a little bit of a belly the next day. He is a lovely guy. Every time he's been on the show he's just a really nice person and you know what, he spoke out. I'm sure he didn't like it. Nobody likes to be examined like that when they're having a day off. Especially not when you have that under your shirt. About to myself and I had quit at that point and he basically ordered me as an army officer he was to get back on the horse and make something happen for myself. Reporter: What he's made is not one but two or three different careers. Using his rules to reinvent himself. Seems like another big secret to your success that can apply to anybody. You have to be fearless and be willing to try just about anything. I'm scared 90% of the time. But I have -- I do things. I push through it and we're all intimidated. We're all scared about things that come along in our life. I was scared to go back to college because -- I was scared to play football and I was scared to -- the first time I did "Live." I was scared to come on "Gma." Scared to come on "Gma." Come on. You scared me. You're ab intimidating guy, George. Yeah, right. I was scared but then you realize you have to get out of your comfort scone. And that bill wither song is number nine, the secret lies not in luck but in the things you do every day. Something we share, you can't survive without a routine. For me the routine sets my mind for the day. It sets -- I wake up in the morning the my routine is I wake up and I put on music. Music makes me happy. Bill withers. Bill Witters "A lovely day". S's one of the songs that kick-starts my attitude of being happy and just enjoying the day. Reporter: Which brings us back to golf. Play is the business of adults. Actually a reason we're on a golf course. Rule number eight. The importance of play. Very important. Why? Because I think we all get so tied up in what's going on in work and all these other things that we forget that life is supposed to be fun. I try to bring that same attitude as much of the fun and play as you can bring to a job, I try to do it. What do you say to someone watching at home and say it's easy for Michael Strahan to be happy. No, Michael Strahan was not happy. Even when Michael Strahan as everyone sees I'm talking about myself in the third person, a little weird. That's dangerous. But even when someone sees it and goes, oh, he should be happy. All these things going, that doesn't make you happiment for me I wake up and choose to be happy and it truly is a choice. Your life is going to be as happy as you want it to be as long as you make the decision that you want to be that way. And Michael is already on his big book tour starting this morning. To his dressing room getting ready for "Live with Kelly and Michael." How happy are you this morning. I'm very happy. Finally, George, you can finally read this book. I'm extremely happy. I mean it's a great day. Seems like a long time coming. Well, let's talk about it, bob. Excuse me, Michael. Not bob anymore. But thanks to Jane fonda. That is not going to be my new nickname at the studio. Only sometimes. It's okay but I really appreciate the fact that you talked about overcoming fear. I remember when you came on the show and how you would look at George, I remember you on the red carpet that time at the oscars and coming over and talking to you, why was it important for you to share those points, as well? Because I think, you know, everyone thinks that it's easy and everyone thinks, people come up and say, oh, just a natural thing you went from football it's amazing and it's not these things that really worked your butt off. It was the first time in my life that I saw attitude torhrough my deseir I can change something and I did -- that I wtedan to change. Reporter: That change led to a love of fitness and, of course, football. A career THA belveie it or not almost never got started but then his dad taught Reul number four. Hit pause before you out and out quit. You really went back aerft your freshman year quit football. Yeah, I was done. After mytrs semester in college, I was away from my family and I went back for Christmas break and took the lightbulbs out of my lamp and I wasn't going back to that college dorm room and I said I'm going to stay and work with you and again he said what are you going to do? I izaltre aedha toit P I had to do something for side.

This transcript has been automatically generated and may not be 100% accurate.

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