Uh-oh. I dread telling you about this latest study—but here goes: Married couples who abide by traditional gender roles in performing household duties have better love lives. Yup, the secret is out: Ward and June Cleaver had a hot sex life!

According to research by sociologists at the University of Washington, which looked at 4,500 heterosexual married couples in the United States who participated in the National Survey of Families and Households:

Couples who follow traditional gender roles around the house—wives doing the cooking, cleaning, and shopping; men doing yard work, paying bills, and auto maintenance–reported greater sexual frequency.