Sex Before Marriage Changes Brain Chemistry


Does sex before marriage change your brain chemistry?
Yes. Sex is a powerful brain stimulant, and the neurochemicals released during it act as the glue of human bonding. Dopamine, compared to heroin in its effect on the brain, drives you to repeat the act and changes how you remember it. Oxytocin helps you forget what is painful and bonds you to whoever is there. Bond repeatedly outside marriage, or to a screen, and that wiring follows you.
In our culture today, we’ve come to believe that sex equates to love – and the better the sex, the better the love. In her new bestseller Love Sense, Dr. Sue Johnson warns:
If you recognize this in your own story, betrayal trauma recovery may help. If your church is facing this, porn recovery resources for churches can help you take the next step.
“Vaulting sex to such primacy has, alas, distorted its role in relationships – and with harming consequences. Instead of drawing people closer together, all the emphasis on sex is instead driving us farther and farther apart. We’re abandoning living partners for screen sex.”
Today, 68 percent of Christian men watch porn and according to a recent survey by Covenant Eyes, about half (49%) of young adult women in the study agree that viewing pornography is an acceptable way of expressing one’s sexuality. What are these statistics telling us about the way we look at sex?
Related Article: Why 68% of Christian Men Watch Porn
Three Sexual Attachment Styles
For over a decade, there have been numerous studies that reveal three different attachment styles in the way people bond sexually: secure, anxious and avoidant. The latter is what’s interesting as it reflects the behavior we see in the statistics above.
According to Dr. Johnson: “
Those of us who are avoidant, that is, uncomfortable with emotional closeness and dependence on others, are more likely to have what I term “sealed-off sex”. Sex is self-centered and self-affirming, a performance aimed at achieving climax and confirming one’s own sexual skill. Technique is prized; openness and vulnerability shunned. There is little foreplay, such as kissing or tender touching. And no cuddling afterward – once the Big Bang occurs, there’s nothing left…Because pleasure without emotional engagement is shallow and fleeting, this kind of sex needs continual boosting to be thrilling.”
Related Article: Science Proves Premarital Sex Rewires The Brain (VIDEO)
Understanding the Sexual Brain
So if we’re not emotionally bonding with our partners during sex, who are we bonding with?
To answer that question, you have to understand how the brain works. Sex is a powerful brain stimulant. There are several neurochemical processes that occur during sex, which are the “glue” to human bonding. When someone is involved sexually, it makes him or her want to repeat that act. Their brain produces lots of dopamine – a powerful chemical, which is compared to heroin on the brain. Dopamine is your internal pleasure/reward system. When dopamine is involved, it changes how we remember.
Related Article: Why is Sexual Sin Against Your Own Body?

The other part is oxytocin, which is designed to mainly help us forget what is painful. Oxytocin is a hormone produced primarily in women’s bodies. When a woman has a child and she is breastfeeding, she produces lots of oxytocin, which bonds her to her child. For this reason, mothers will die for their child, because they’ve become emotionally bonded due to the oxytocin that is released when they’re skin-to-skin with their child.
The same phenomenon occurs when a woman is intimate with a man. Oxytocin is released, and this makes her bond to him emotionally. Have you wondered sometimes why a woman will stay with a man who’s abusing her? We know now that it’s partly because she bonded to him emotionally because of the oxytocin released during sex.
Men produce vasopressin, which is also referred to as the “monogamy hormone”, and it has the same effect as oxytocin has on a woman. It bonds a man to a woman. These “bonding” agents narrow our selection to one person. That is wonderful in a marriage relationship but really bad in a dating relationship because you lose your objectivity when you’re searching for your potential lifemate. And equally harmful when you’re using pornography as a married person, as the synthetic is setting you up for an adulterous affair. Sex, whether physical or vicarious, hooks us into relationships.
Related Article: How Viewing Porn Is Wounding Your Wife & Hurting Your Family
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Becoming Bonded With Porn
These same neurochemicals are present when viewing pornography or fantasizing about pornographic images while being intimate with your spouse.
A person will become bonded with whatever he is engaged in during the moment these chemicals are released. When your relationship is being carried on with an image, you become bonded to whatever you’re viewing – whether it’s physical or in your head.
Related Article: This is Your Brain on Porn
Dr. Doug Weiss, a marriage counselor, advises men in the Conquer Series, a cinematic group study on biblical sexuality, to have eye contact with their wives during sex because they become bonded with that person. By doing this, he explains that,
“over time, individuals will decrease the neural pathway to pornography and sexually inappropriate thoughts and believes and glue to healthy sexuality to [their] wife. When your brain thinks sex, it thinks, ‘Where’s my wife?’ And that is a great way to fight this battle.”
Related Article: Defeat Porn by Understanding Your Brain's Arousal Template
Cycle of Sexual Sin
For someone viewing porn, one of the functions of oxytocin is to separate the experience and the excitement from the intensity of the shame.
According to neuropsychologist Dr. Jes Montgomery, “Usually by the time they turn the computer off, they are already sinking into a sense of failure and shame, and the function of oxytocin is to tell the brain, ‘Wait a minute. You don’t want to remember that. You want to hold on to this excitement and this amazing magic that you just experienced.’”
Related Article: How Sexual Sin Sears Your Conscience (VIDEO)
Knowing how these neurochemicals interact and change the brain help us understand why sex is meant to be kept within the boundaries of marriage. You see the overtones here about God’s design for His pure temple. This is another reason why the devil attacks our sexuality so much; because in attacking human sexuality, it actually interferes with human bonding. God wired and designed our brains for a specific purpose: to bond ourselves with the person we marry.
Safe Sex
Our culture promotes the idea that love follows good sex, when actually the opposite is true. Good sex comes from forging strong emotional bonds, which in turn leads to better sex and an even stronger bond, and so on.
In essence, the key to great sex is when sex becomes a safe place for us and our partner – when we can trust each other with our needs and wants and be vulnerable with each other. This means forsaking all others – be it pornography and our own fears and selfishness – and risking our hearts to become one with the person we’ve vowed to love.
Related Article: Bringing Intimacy Back to the Bedroom

Jennings, Weiss and Montgomery are just several of the many experts featured in the Conquer Series who provide amazing insights for healthy biblical sexuality.
The Conquer Series is being used as a small group study by millions of men in over 100+ countries. It was voted #1 documentary series by the Christian Film Database in 2014. Join the journey to freedom that millions are already on.
You can read more about Dr. Sue Johnson’s research in her book Love Sense.

Equipping women and couples with biblical wisdom, practical tools, and compassionate guidance to pursue healing, and strengthen relationships.
More articles by Tiana Wiles →Frequently Asked Questions
What does oxytocin do during sex?
Oxytocin is a bonding hormone produced mainly in a woman's body, and one of its jobs is to help her forget what is painful. A nursing mother produces it in large amounts, which is part of why mothers will die for their children. The same chemical is released when a woman is intimate with a man, bonding her emotionally to him. It is one reason a woman may stay with a man who is hurting her.
What is vasopressin and what does it do in men?
Vasopressin is sometimes called the monogamy hormone. It is produced in men and has much the same effect on a man that oxytocin has on a woman, bonding him to the woman he is with. These bonding agents narrow a man's focus to one person. That is a gift inside a marriage. In dating it costs you your objectivity at the exact moment you most need it.
Can you become emotionally bonded to pornography?
Yes, and that is the quiet danger. The same neurochemicals fire when a man views pornography or fantasises about pornographic images while being intimate with his wife. A person bonds to whatever he is engaged with at the moment those chemicals release. When the relationship is being carried on with an image, the bond forms with the image, whether it is on a screen or only in his head.
What are the three sexual attachment styles?
Studies over the past decade or so describe three: secure, anxious and avoidant. The avoidant style is the one showing up in the culture's statistics. It is marked by discomfort with emotional closeness and dependence, and it produces sealed-off sex that is self-centred and self-affirming, a performance aimed at climax. Technique is prized, vulnerability is shunned, and because pleasure without engagement is shallow, it needs constant boosting.
How can a married man rewire his brain toward his wife?
One practical step is deliberate eye contact with your wife during sex, because the brain bonds to whatever it is engaged with in that moment. Over time this weakens the neural pathway toward pornography and sexually inappropriate thoughts, and glues healthy sexuality to your wife instead. The goal is simple: when your brain thinks sex, it thinks of her. That is not willpower. That is retraining, and it is a real way to fight.

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