Study after study has shown that sitting for an extended period each day can make us fat and increases our risk of serious health complications. If you are like millions of others, you have made a resolution to get physical in the new year. Research has found that just two and a half hours of weekly exercise can help extend your life and decrease your risk of heart disease. And get this: it doesn't matter how you choose to spend those 150 weekly minutes exercising. Whether you sign up for a spin class or take up walking around your neighborhood, any physical activity counts. Here are a few ideas:

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