Erectile dysfunction in men: what we experience in our bodies can sometimes start in our brains

Most men do not arrive at a sex therapist's clinic the first time they cannot get an erection. They arrive much further down a road than that. By the time they reach me, they have usually spent months, sometimes years, trying to work it out on their own, then through their GP, then through urology, then through medications, sometimes through online forums and over-the-counter products, and then through a slow narrowing of what they thought their sexual life was going to look like.

The pattern is familiar. Earlier in life, erections were instinctive, automatic, something that just happened. They did not need to be analysed or worked at. Then, often without obvious warning, the body stops doing what it has always done. The natural conclusion is that something physical must have changed. The blood tests are run. The hormonal panels are checked. The cardiovascular markers are looked at. The medication list is reviewed. And for the majority of the men who eventually come to me, most or all of those investigations come back without a clear answer. The man is left holding a problem that medicine has said is not physical, without much sense of what comes next.

The impact by this point is rarely small. It changes how a man feels about himself. It changes how he shows up in relationships. It shapes whether he can still think of himself as a sexual person. It is one of the hardest things for men to talk about openly, even with their partners and even with their doctors, and that silence often makes the problem worse before help arrives.

In over ten years working in NHS sexual health services, and across the outcomes we have now published in peer-reviewed work, what I have come to think is that for the majority of these men, the answer is more often in the brain than in the body. This piece is about why, and about what most treatment misses.

What you need to rule out first

Before going any further, the physical possibilities need to be taken seriously, because some of them genuinely matter.

Cardiovascular health, high blood pressure, diabetes, high cholesterol, the effects of certain medications, the after-effects of surgery, hormonal changes including testosterone, and various other physical factors can all affect erections. Sometimes erection problems are the first visible sign of an underlying physical issue, particularly cardiovascular, that needs medical attention regardless of the sexual difficulty itself.

So the first step, for any man worried about erections, is to speak to his GP. Have the conversation. Get the basic tests. Take the medical pathway seriously. Get clarity on what your body is actually doing.

What I am writing about here applies to the majority of men whose investigations come back without a clear physical cause, or who have a partial physical cause that does not, by itself, explain what is happening. That is most of the men I see.

What is actually happening when the body will not respond

Erections are a physical event, but the system that controls them starts in the brain. This is the part that is rarely explained to men in any useful way.

For an erection to happen, a particular part of the brain's nervous system needs to switch on. Clinicians call it the parasympathetic nervous system. In plain language, it is the body's rest-and-recover system. It is what is active when you are relaxed, regulated, processing the world without urgency. When that system is switched on, the body's organs work in their normal, optimal way. Blood flow is steady. The mind feels more able to take in what is around it. The body produces a particular set of brain chemicals, including dopamine (reward and motivation), serotonin (mood regulation) and oxytocin (closeness, safety, connection). All three of those matter for sex.

In the right conditions, with the right stimulus, with the rest-and-recover system switched on, the brain sends signals to direct blood flow toward the genitals. That is what makes an erection happen and what allows it to be sustained. Alongside the physical change, the same chemicals help the brain to focus in on the experience of sex itself, on the person in front of you, on the sensations in your body, putting other thoughts aside. It is the combination of the physical and the mental that creates the experience most men remember as effortless.

The problem is that the body has a second system, called the sympathetic nervous system. This is the stress-response system. It switches on when the brain perceives something as threatening, dangerous, or stressful. When it does, the body produces a very different set of chemicals: adrenaline and cortisol, the ones most people have heard of in the context of stress.

What the stress-response system does, in physical terms, is prepare you to act. Run, fight, escape, focus on solving the immediate problem. Blood is redirected away from the parts of the body that do not help you do that, and toward the parts of the body that do. Arms, legs, the major muscle groups, the parts of the brain that help you think your way out of trouble. The genitals are not where blood needs to be when the body is preparing to deal with a threat. So blood is pulled away.

This system, by itself, is doing exactly what it was designed to do. It is keeping you alive in situations where being alive is the priority.

When sex itself becomes the threat

The problem comes when the brain starts to perceive sex as the threat.

The problem comes when the brain starts to perceive sex as the threat.

It rarely starts that way. It almost always starts with something quite ordinary. A man loses an erection once, in a particular situation, for no clear reason. This is incredibly common. Almost every man has the experience at some point in his sexual life. But when it happens to a man who has not had it before, the experience can be unsettling. He notices it. He thinks about it afterwards. He carries a small worry into the next encounter, even if he cannot quite name it.

If it happens again, the worry sharpens. The brain begins to do something it is very good at doing. It starts to register sex as a context where something difficult might happen. Where there is the potential for failure. Where there is something to be afraid of.

The next time the man is in a sexual situation, the stress-response system fires up. Not because the situation itself is dangerous, but because the brain has learned to treat the situation as one where danger could occur. The wrong system switches on. Blood flow gets redirected away from the genitals to the limbs and the brain. The body does not respond the way the man wants it to.

There is nothing wrong with his body. The body is doing exactly what the body has always done in situations the brain perceives as threatening. The miswiring is in the messaging. The brain is sending the wrong signal to a body that is otherwise perfectly capable.

Once this cycle is running, it tends to reinforce itself. Each ED experience teaches the brain to fire the stress system harder next time. Each anxious anticipation produces more cortisol going in. Each loss of erection confirms the brain's prediction. The man can find himself in a position where he is, in effect, repeatedly trying to be sexually relaxed while his body is being prepared for fight or flight.

The pressure around sex is not always about sex

The other thing worth saying is that the pressure producing the stress response does not always come from inside the sexual situation itself. It can be much broader.

The pressure can be relational: the state of a relationship, the unspoken tensions in it, the sense of being criticised or judged, the pressure to perform for a particular partner. It can be about the man's view of himself: expectations about what his body should be doing at his age, comparisons to the men in pornography, to friends' descriptions of their sex lives, to social messaging about masculinity and sex. And it can come from the rest of life entirely: work pressure, family difficulties, financial stress, bereavement, relationship breakdown, confusion or change around sexual identity.

The body does not know the difference between any of these and the sex it is being asked to do. The system that gets fired up by a fight with a partner is the same system that gets fired up by an argument with a boss. Both of them will affect what the body can do sexually, even if the man is not consciously aware of how stressed he actually is.

The body does not know the difference between any of these and the sex it is being asked to do.

The starting point in therapy, with most of the men I see, is to be curious about where the stress and pressure are coming from. What has shifted. What sex has come to mean. What the man is bringing into the bedroom from the rest of his life. Identifying the actual sources of pressure is what allows the system that has been miswired to begin to reset.

Two men I have been thinking about

The cases described in this essay are anonymised. Initials and identifying details have been changed throughout. Some are composites.

To make this concrete, here are two men who have been on different versions of this journey.

F.A. A man in his early twenties. He started having sexual experiences only a few years before he reached me. The introduction had been difficult. His relationships with women had been short. They had not developed in the way he wanted them to. The pressure around him was enormous. His friends talked about sex constantly. They went out, they met partners, they recounted what they had done. Pornography told him what a body was supposed to do. Social messaging told him what sex was supposed to look like. The partners he had been with had, in his telling, been disappointed when his body did not respond exactly as expected. He had been criticised. Some of those relationships had ended in part because of it.

By the time he came to me, his self-description had collapsed into a single sentence he repeated in various forms. My body is broken. I am not able to do this. There is something wrong with me.

The starting point with a man like this is not to investigate the body. It is to be curious about everything else. What is he actually feeling, in the moments before sex? Where is the pressure coming from? What is he expecting his body to do, and against what comparison? Whose voice is in his head when he is in bed with someone? Most of the time, the answer to those questions reveals a stress response that has been quietly building for years. The body has been doing exactly what bodies do under sustained pressure. The work is to identify the pressure and to begin, slowly, to take it off.

D.W. A man in his late fifties. He has been in various relationships across his life and is now in a long-term partnership. He has high blood pressure and a history of hypertension, and his GP has recently started him on statins and other medication to manage his cardiovascular health. He is overweight. He is pre-diabetic. He is trying to improve his fitness and his diet.

This man comes into the room with actual physical reasons for his erections having changed. He understands that. He has been told. He is trying to do the things he needs to do.

But what he describes is something the medical pathway does not address. The experience of his body changing has shifted the whole dynamic of his relationship. He has become avoidant of sexual contact, because it now feels stressful in a way it did not used to. His partner has become avoidant of talking about it, even though it is affecting her too. The avoidance has led to conflict. Every time they go away on holiday, every time they end up in a hotel, he feels the pressure of an unspoken expectation. He tries to initiate and finds himself struggling. The strain leaks into other parts of the relationship.

Despite being on the medication and on a clear medical pathway, what he describes most clearly is a loss of confidence. He says he has stopped seeing himself as someone who can initiate sex in the way he used to. He has lost touch with his sexual self. He tells me, in one session, something I have thought about often since:

> "I didn't realise erections were such a big part of my identity. Getting an erection was part of what made me feel like a man, and a good husband."

That sentence captures something most clinical writing on ED never acknowledges. The biological function carries an identity weight that has very little to do with biology. When the function changes, something about the man's sense of who he is can change with it, and that psychological change can then maintain the problem long after the physical cause has been addressed medically.

What men have said about it

Two other men I have worked with, in different contexts and from different starting points, said things to me at different stages of the work that I have carried since.

> "Losing erections made me feel I was totally broken. I know that sounds dramatic."

He said that early in our work. The fact that he flagged it as sounding dramatic was itself part of the problem. He was already telling himself, before I could, that his reaction was disproportionate. Part of what the work has to do is to take the reaction seriously rather than apologise for it. Erections do carry weight for most men. Losing them does feel like something fundamental has shifted. Treating that feeling as something to be embarrassed about, rather than something to be addressed, is what keeps the problem in place.

> "Finding out what worked for me made my body work in ways I never imagined."

That was the same man, twelve months on. The shift was not because the body had been physically repaired. It was because he had been allowed to work out, for himself, what conditions made sex feel safe, relaxing, enjoyable, his again. Once those conditions could be created reliably, the body did what bodies do.

And one more, from a man in his forties, near the end of his work in the clinic:

> "I'm getting more erections than I ever had, now that I know what I need in sex."

That last sentence is the cluster's central insight on this topic. The man is not getting more erections because his body is younger or healthier than it was. He is getting more erections because he finally knows what he actually needs from sex, rather than what he had been taught he should want.

Why I work this way

Standard medical treatment for ED runs through three layers. First, investigation of physical causes. Second, medication, most often sildenafil, tadalafil, or one of the related drugs. Third, in more severe or treatment-resistant cases, escalation to specialist urology pathways and physical interventions.

That pathway is necessary. For some men it is sufficient. For many it is not.

What it does not address is the brain. It does not address the stress-response system that has learned to fire during sex. It does not address the identity weight that erections carry. It does not address the relational pressure that maintains the cycle. Pills produce mechanical erections without changing the underlying conditioning that is creating the problem. For some men, this works fine; the mechanical erection is enough to interrupt the cycle and rebuild confidence. For others, the pill produces an erection that feels separate from them, that does not solve the worry, and that does not address why the body had begun to refuse in the first place. Some of those men end up dependent on medication for sex that, before the cycle started, did not require any medication at all.

The work I do with men sits alongside, not instead of, the medical pathway. We start from a different question. Not what is wrong with your body. But what has sex come to mean to you, and what is your brain doing when you approach it.

Not what is wrong with your body. But what has sex come to mean to you, and what is your brain doing when you approach it.

That question opens different conversations. About what he is afraid of, often without realising. About what he is comparing himself to. About what his relationship is asking of him that he has not been able to talk about. About what his own pleasure actually looks like, as distinct from what he thinks pleasure is supposed to look like.

When those conversations happen, and the man begins to identify and address the actual sources of stress in his sexual life, the brain's prediction begins to shift. Sex begins to be classified, slowly, as a safe context rather than a threatening one. The rest-and-recover system can come back online. Erections can begin to happen without being demanded.

This is not a quick fix. It is also not a guaranteed fix. But for the majority of men I see whose ED is not explained by clear physical pathology, it is what works.

What change actually looks like

For the man in his early twenties, the work involved unpicking, slowly, the layers of pressure he had been absorbing. The pornography. The friends. The previous partners' criticism. The internal voice telling him his body was broken. Over months, the pressure came down. He began to be able to have sexual experiences that were not, from the first moment, performances under scrutiny. His body, having been treated as broken, began to act differently when the threat around it dissipated. He had not been treated medically at any point. The shift was in the conditions around the sex, not in the biology of his body.

For the man in his late fifties, the work ran alongside the medical pathway. The medication for blood pressure stayed. The lifestyle changes continued. What the therapeutic work added was a way of talking with his partner about what had been changing for both of them. A way of redefining sex inside the relationship that no longer hinged on erection-led performance. A reconnection to the parts of his sexual identity that did not depend on a particular physical function. By the end of the work, his erections had improved somewhat, in part through the medication and in part through the reduced stress. More importantly, the loss of erections had stopped being a defining feature of his marriage. Sex had become possible again, sometimes with erections, sometimes without. His sense of himself as a partner had been recovered.

Both men got something the medical pathway alone would not have given them. Not a perfect body. A new relationship to sex.

Not a perfect body. A new relationship to sex.

If you are thinking about this for yourself, or for someone in your life

If you are reading this and recognising yourself, or recognising someone you live with, a few things are worth knowing.

The first is that you should still see your GP. Get the physical investigations done. Take medication if it is offered and you want to try it. The medical pathway is not the enemy of the psychological work. It runs alongside it.

The second is that if your investigations come back clear, or if you have a partial physical cause but the loss of erections feels disproportionate to what your body is doing, the missing piece is almost always in the brain. Not in a moral or psychological-weakness sense. In a wiring sense. Your stress-response system has begun firing during sex, and that is not something a pill solves on its own.

The third is that the questions to ask of a clinician matter. Do you only work medically with ED, or do you also work psychologically? Do you understand the brain's role in this and how it can be addressed? Will I be passed straight to a urology pathway, or will we look at what is going on around the sex first? If a clinician has no language for linking the ways our brains can impact physical response, they may not be the right starting point for what you actually need.

The fourth is that the work is not about performing under more pressure. It is, paradoxically, about taking the pressure off. Most of the men I see have been trying harder for months or years to make their bodies do what they used to do. Trying harder is, biologically, exactly what produces the problem. The work is in the opposite direction. In figuring out what your body actually needs to feel safe, relaxed, and turned on, and building those conditions, rather than trying to overcome the absence of them through sheer effort.

The fifth, if you are the partner of a man going through this, is that this is one of the hardest things in a relationship to talk about. He is almost certainly carrying more weight about it than he is showing. Approaching it as a shared problem to work out together, rather than as something he needs to fix, tends to do more than anything else. The pressure of a partner who is openly disappointed or quietly avoiding it is part of what maintains the cycle. The willingness of a partner to be in it together is part of what unwinds it.

What erections are actually telling you

The hardest piece of this work, and the most important, is changing the relationship a man has with the variability of his own body.

The hardest piece of this work, and the most important, is changing the relationship a man has with the variability of his own body.

Erections are not a switch that should always be on whenever asked. The cultural script tells men they should be, that the body should respond to any opportunity, any partner, any moment of attraction, automatically. That script is wrong. Erections are a response, not a guarantee. They reflect what the brain is reading from the situation. When the situation is felt as safe, desired, low-pressure, the body responds. When the situation is felt, somewhere underneath conscious awareness, as a source of threat or judgement or pressure, the body does what bodies do under threat. It withdraws.

That is not a failure of the body. It is the body working properly, in a context where the brain has miscategorised what is happening.

The work, when it works, is the slow recategorisation of sex. From a context the brain has learned to brace for, to a context the brain can settle into. When that re-learning happens, the body usually does what it was always going to do.

The slow recategorisation of sex. From a context the brain has learned to brace for, to a context the brain can settle into.

That is what I tell men who arrive in the room sure their body is broken. Your body is not broken. Your brain has been doing its job, in a situation it was not designed to read this way. The work is not to fix the body. It is to help the brain stop treating sex as the thing it is fighting off.

Dr Michael Yates is a Clinical Psychologist, EFS-ESSM Certified Psychosexologist and COSRT-registered Sex and Relationship Therapist. He is Lead Clinician and Psychology Service Lead at 56 Dean Street, part of Chelsea and Westminster Hospital NHS Foundation Trust.