Even when you're not doing anything particularly acrobatic, sex can be a fitness challenge. Some positions don't require too much to get the job done, but having enough strength and endurance to give your all will improve your time in bed. "If it's good for your body, it's good for sex," says Timaree Schmit, Ph.D., sexuality educator, and certified fitness instructor. Schmit, who teaches a workshop on sexual fitness, offers us her top choices for exercises to boost sexual performance.
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