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The secret is simple,” she told readers. You “substitute activity for inactivity as much as you can during the course of a normal day and take a few minutes of each day to do some easy exercises.” It was straightforward enough. “For more fun and best results do the exercises to music,” she added. “Use Leroy Anderson’s ‘Sleigh Ride’ or ‘China Doll.’ ” Women should “never wear girdles while exercising,” she warned, “but should wear a brassiere.
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Danielle Friedman (Let's Get Physical: How Women Discovered Exercise and Reshaped the World)