"According to the science, porn trains our brains to release more endorphins than is natural in response to an overload of sexual stimuli. After a while, our brains become desensitized and develop a need for higher and higher stimuli in order to reach the same arousal and excitement."

Um, isn't that just how the brain reacts to everything? If you have sex with your wife every day, unfortunately you'll also get bored or driven to trying more and more kinky stuff (having her dress like princess Lea and what not).