Not “myths,” but lies.
Katie Couric recently embarrassed herself during an interview with psychologist David Ley about pornography. When he calmly described to her what a range of scientific studies say about porn’s effects on behavior and our brain—that it’s minimal—Couric raised her voice, rolled her eyes, and said she was sick of science. “Can’t we use some common sense here?”
Actually, no. Common sense clearly tells us that the Earth is flat. Want some science with that, Ma’am?
In contrast, Couric believed the fact-less, emotional rantings of her other guest—because they fit Couric’s existing beliefs. Like all morning TV hosts, her job is to say bland things, not to think. At least Couric didn’t lie; she’s just uninterested in facts.
Some people do lie. Here are some popular lies about sex that are easy to believe because they make “common sense”—and because some people are making a lot of money and maintaining large support bases promoting these lies.