This is true. And also, porn and masturbation not only have HIGHER negative effects, but they also have fewer positive effects. Because as we've discussed, one of the main points of orgasm is bonding between a couple. But when you're masturbating, you're not bonding with anyone. So it's basically just for momentary physical pleasure, and can have negative effects. Where as sex, if it's abused, can have negative effects, but the positives are much higher and definitely worth it for a healthy relationship.