All week long, we're busy checking out how the celebrities stay fit. But there are so many stars, and so many tips, that it can be easy to miss one! If you want to make sure you're up to date on your hot celeb fitness scoop, this is your chance. Click on your secret celebrity fitness crush above to find out what he or she was up to this week!

When you put on a couple of pounds, it's easy to ignore it. But eventually, if you keep putting on weight, there will come a point at which you know things just have to change. Maybe it's a depressing shopping trip, or a photograph. Or, if you're Kevin Smith, it's when you break a toilet.

The director/writer/actor has been conscious of his size for some time now -- his doctor called him morbidly obese, which is sure to get anyone's mind on losing weight, but it was after breaking a toilet that he really realized that he needed to do something.

"I'm going away for a while to concentrate on myself," said Smith, "to save my life." Once he's done doing press for Zack and Miri Make a Porno, he plans to get away and focus on counting calories and losing a bunch of pounds. It sounds like he's in a bad place, but he's got a plan, and I hope he's got plenty of friends to help him through it -- we all know support makes a big difference!

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