Several recent studies have shown a link between health and stair usage. One recentlycompleted study shows that people who live in stairs-only apartment buildings (that is,buildings without elevators) live an average of three years longer than do people w

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Several recent studies have shown a link between health and stair usage. One recentlycompleted study shows that people who live in stairs-only apartment buildings (that is,buildings without elevators) live an average of three years longer than do people w
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