But the key to this, it said, were two factors: remaining active and maintaining friendships.

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This new breed of indexers--not, in fact, indexers, but active strategists--focus on weighting portfolios by so-called fundamental factors.

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You have several colliding factors that all lead to increased participation and interest in an Active Lifestyle.

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To compile the list, we crunched data on more than 400 cities from every state, looking at factors ranging from living costs and taxes to crime to the availability of doctors and the opportunity to stay active with outdoor exercise and volunteer work.

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