Even recent science proves the benefits of a little breathing room in the bedroom. "Fifteen years ago, experts in the field of sex therapy used to say that the best sex was among the people who were the most intimate--who knew all of the warts," says Scott Haltzman, MD, clinical assistant professor of psychiatry at Brown University and author of The Secrets of Happy Families. "But there's been a pendulum shift in our thinking. We now know that one of the things that improves sexual attractiveness is not always being in the presence of another person. There's good evidence that an LAT can actually increase people's sexual attraction to each other."