Illustration: Mark Matcho

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Live Longer
For women, quality trumps quantity when it comes to the lifesaving effects of sex. Simply having positive memories about your sexual past may add roughly four years to your life, according to research at the Duke Center for the Study of Aging and Human Development. Researchers found that these fond memories may encourage you to continue leading a happier, healthier life.

Next: 3 ways to heat up your sex life