By Charlotte Hilton Andersen, Reader’s Digest

What you didn’t learn in high school sex ed: the surprising, science-backed proof about aphrodisiac foods, men’s and women’s desire, and more.

Myth: Sex burns major calories

Truth: Experts estimate thirty minutes of sex burns 85 to 150 calories. Theoretically, you need to burn about 3,500 calories to lose a pound of body weight, so if you were using up 100 calories every time you had sex, you could lose one pound if you had sex 35 times. The problem is this: Most people are not having sex for thirty minutes. Instead, the average duration of sex is closer to five minutes. In fact, the biggest increase in your heart rate and blood pressure during sex only occurs for about fifteen seconds during orgasm, and then things quickly return back to normal. Sex may not burn a lot of calories, but having sex once a week can actually help you live longer.

Charlotte Hilton Andersen, Reader's Digest

We include everything from why wearing socks is sexier than lingerie to how sleeping with your wife can get you ahead with your boss.

Nearly 10 percent of all dreams include sex

Sex dreams aren’t just the territory of horny teenage boys. In fact, nearly one in ten dreams contain some R-rated sexual content—and that’s true for both men and women, according to a study published by the American Academy of Sleep Medicine. There were some gender differences though: Women were more likely to have sex dreams about politicians, celebrities, or their exes while men were more likely to dream about having sex with multiple partners at once. Check out these sex facts about committed couples.

By Carolyn Steber, Bustle

Some conversations are easier to have than others, especially when it comes to saying difficult things to your partner. It can be tempting to sweep certain issues under the rug, as a way of avoiding conflict, tension, and discomfort. But if something's eating away at you, it's best to get it all out for your own sake — as well as the health of your relationship.