http://www.sbwire.com/press-releases/p90x3-reviews/sbwire-455028.htm

“I’m an athlete. I’ve been an athlete since I was a little girl. And I went on ‘The Biggest Loser’ journey to find that confidence that I lost.” For breakfast, Frederickson, who has discovered “a zest for looking up recipes and trying them,” sticks to egg white French toast or an omelet made with egg whites, spinach, tomatoes and p90X3 results mushrooms. Meanwhile, before the weigh-in, she said she’d been taking “maybe three, four [exercise] classes a day,” including Zumba and spin. “I even went home over the holidays to Minnesota and I went running outside,” she added.
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What Happens To Our Brains When We Exercise And How It Makes Us Happier

The somewhat scary part is that they have a very similar and addictive behavior like morphine, heroine or nicotine. The only difference? Well, its actually good for us. The key to maximize happiness through exercise: dont do more, but focus on when Now here is where it all gets interesting.
For the original version including any supplementary images or video, visit http://www.fastcompany.com/3025957/work-smart/what-happens-to-our-brains-when-we-exercise-and-how-it-makes-us-happier