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These are America’s fittest cities

These metro areas have easy access to parks, walking paths and bike lanes. They also have good air quality and are safe for pedestrians.

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Why do I have so much gas?

Your gas can usually be traced to what you've been eating. It's also totally normal, so don't be embarrassed.

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How to be alone on Valentine's Day

The author of "How to Be Alone" reveals how to enjoy the holiday even if you don't have anyone to celebrate Valentine's Day with.

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