Porn is more accessible than ever before.
In spite of recent legislature changes to restrict porn access in Australia, it is estimated that around 75% of men and more than 40% of women consume pornographic material.
Research is increasingly demonstrating links between porn consumption and serious physiological changes in the human body, largely in the frontal cortex of the brain. Porn addiction also extends beyond biological changes and can negatively impact mental health and relationships too.
How Does Porn Impact The Brain?
The neurological and psychological impacts of frequent or obsessive consumption of pornography manifests primarily in the brain’s reward, impulse and emotional networks. Neuroimaging research indicates that frequent pornography use is associated with a reduction in grey matter in the brain’s reward centre and reduced connectivity between it and the prefrontal cortex. This decrease is linked to diminished impulse control and lower emotional regulation.
1. Porn triggers the reward system
Watching porn triggers the brain’s reward system by providing immediate, visual, and highly stimulating cues without the typical physical or social effort required in real life. By doing this it bypasses the normal limits of the reward response, making porn consumption what’s known as a ‘supernormal stimulus’. One of the impacts of this is the release of massive amounts of dopamine, at levels that can’t be achieved in normal, ‘real-world’ intimate interactions.
2. Porn releases dopamine
The supernormal stimulus response results in large surges of dopamine, the neurotransmitter associated with motivation and reward, in the mesolimbic pathway. These massive surges of dopamine effectively flood your reward circuits, making porn consumption highly motivating and creating a feedback loop of craving and anticipation.
3. Porn desensitises brain receptors
Repeated exposure to porn and the subsequent flooding of dopamine into the reward circuits of the brain can reduce the response of dopamine receptors, making it harder to experience pleasure from natural, everyday rewards and real-life intimacy. As dopamine receptors become desensitised, the user may require more extreme, varied or greater amounts of content to achieve the same level of arousal. This is similar to drug tolerance, as the brain can normalise to a certain level of pornographic intensity.
The Chemical Changes That Can Occur in the Brain
Beyond the release of dopamine and subsequent desensitisation of receptors, frequent porn viewing triggers other chemicals like oxytocin and vasopressin. These chemicals, along with molecules that accumulate during addictive behaviours, reinforce compulsive neurological pathways. This altered brain chemistry makes real-life intimacy less stimulating.
Also, in time, the impacts of the altered brain chemistry of overstimulation created by excessive dopamine release, makes the connection between the prefrontal cortex (the brain’s impulse-control and logical reasoning centre) and the reward system weaker. This often results in impaired decision-making, poor emotional regulation and a reduced capacity to control impulsive behaviours.
The Real Effects of Porn on Sex & Intimacy
Frequent porn consumption and the resulting changes in brain chemistry and structure can have lasting impacts on psychology and behaviour.
1. Unrealistic expectations of sex
Pornography can shape long-term sexual preferences, behaviours of individuals, and their expectations of themselves and their partners, especially in those exposed to content during adolescence and in their formative years. It creates a perception of what is ‘normal’ during sexual interactions, which in reality might be quite unrealistic or extreme. This distorted idea of what is expected can lead to various negative health and social outcomes.
2. Porn can lead to erectile dysfunction
Due to the desensitisation of dopamine receptors, real-world intimacy can become less stimulating. As a result, the individual requires increasing levels of stimulus to become aroused. Coupled with this is the fact that in many cases, the real-world sexual interactions are very different to the porn being consumed, creating unrealistic expectations and a less stimulating experience. This has been directly associated with erectile dysfunction in what’s known as Porn-Induced Erectile Dysfunction (PIED).
3. Porn addiction can impact relationships
Porn consumption can have negative impacts on both the user and their partner.
The negative impacts on a user’s real-world arousal can lead to a loss of interest in intimacy, decreased relationship satisfaction and emotional closeness. These impacts can create feelings of inadequacy in their partner, as they believe they are unable to fulfill the physical and emotional needs of their companion. It can also cause tension in a relationship as the partner of the user may feel that certain sexual activities desired by them are objectionable or they are simply unable to perform them.
Porn consumption has also been linked with increased behaviours like infidelity, as the user seeks ‘real-world’ fulfillment of their desires. This correlation between porn addiction and infidelity, and the prior mentioned feelings of inadequacy in the partner, can lead to mistrust in a relationship, even where infidelity is not occurring.
Another impact of porn addiction on relationships is that the repeated routing of behavior through the reward pathway can lead to a condition called hypofrontality. This functional reduction in the prefrontal cortex makes it increasingly difficult to resist urges or “just stop,” even if the act causes personal distress or negative outcomes. For the partner of a porn addict, it can be challenging to understand why an individual finds it so difficult to stop the behaviour.
4. Anxiety, depression, mood swings
Research has shown that there are significant impacts on the psychology of porn users that can result in anxiety, depression, social and emotional isolation, and mood swings. This is similar to the mental health impacts often experienced by drug addicts. Many individuals also report feelings of guilt and shame, which are followed by compulsive viewing to manage these negative emotional states. It becomes a cycle that fuels the users ongoing addiction.
Porn consumption may seem like a harmless act with only short-term implications, however research has shown that it can lead to addiction and serious negative outcomes on both mental and physical health. In a world where porn is becoming increasingly accessible and its consumption normalised, porn addiction is a growing health concern in society.
