The Puff Discussion

Something I notice — in practice and in everyday life. Cars sitting in traffic with smoke so thick inside you can barely see the driver. Couples in my consulting room, one person desperate about how much the other uses, the other defending a habit.

The habit rarely exists in isolation. There is a ritual around it — leaving the room, a specific time of day, certain people, a particular emotional state that precedes it. The rituals can be as problematic as the puffing itself.

I also notice the ethical conundrum this creates. Every person has the right to do with their body what they choose. That is not a small principle. And yet — something feels sad about a relationship lost, or never fully begun, over something that was always meant to be optional.

It is also worth noticing how much this topic gets defended. The strength of the defence is worth sitting with. Personal autonomy is a real and valid reason to protect a choice. But when the defence is particularly vigorous — when the conversation itself feels threatening — it may be worth asking what exactly is being protected.

Both sides of this conversation are fighting for something real — care, comfort, connection, autonomy, control. Understanding what each person is reaching for makes the conversation possible. What follows is condensed research on how these substances impact sexual function — not to make the decision for anyone, but to ensure that whatever decision is made, it is an informed one.

The body does not compartmentalise what you put into it. Everything you inhale — every substance, every chemical, every particle — enters the bloodstream and travels to every organ, every cell, every system. There is no local effect. What reaches the lungs reaches the heart, the brain, the genitals. This is not a theory. It is how circulation works. If the circulatory system stops, everything stops. It is that fundamental.

Sexual function specifically depends on three things working together: adequate blood flow to the genitals, intact nerve signalling, and a functioning hormonal environment. The key molecule in genital blood flow is nitric oxide — it signals the smooth muscle in penile and clitoral tissue to relax, allowing blood in. Without sufficient nitric oxide, arousal becomes physiologically more difficult regardless of desire. Anything that depletes nitric oxide, disrupts nerve signalling, or alters hormonal balance will show up, eventually, in sexual experience.

Sexual function is also one of the body’s most sensitive early indicators of vascular health. Problems with arousal, erection, lubrication, and orgasm often appear before the same underlying damage becomes visible anywhere else. Most people attribute these changes to stress, age, or relationship dynamics. Sometimes the cause is simpler and more physical. If you smoke, vape, or use cannabis regularly and you have noticed changes in your sexual experience — what you are inhaling is a relevant variable. That is not a complicated idea. It is just biology.

For cigarettes and vaping, the evidence on cessation is meaningful. Former smokers show significantly better erectile function and libido than current smokers. The endothelium — the lining of blood vessels responsible for nitric oxide production — begins to recover after smoking cessation, and erectile function improves in those who quit, particularly men who are younger and whose vascular damage has not yet become structural (Allen & Tostes, 2023). This is not guaranteed, and it is not immediate. But it is documented.

For cannabis, the picture depends entirely on how you are using it. If low to moderate use is enhancing your sexual experience without driving dependency or withdrawal from your partner, the research does not suggest you need to stop. If heavy or chronic use has shifted the picture — reduced desire, difficulty orgasming, increased withdrawal into yourself during sex — reducing use is the clinically supported direction.

Sexual function has not historically been considered a key element of human functioning, connection, or fulfilment — not in medicine, not in public health, and not in most cultural conversations about wellbeing. It has been treated as a private matter, and a secondary one. How you enjoy sex, whether you enjoy it, desire, lust, disgust — these have not been considered important enough to base decisions on. Even now, in an era that speaks more openly about mental health and wellbeing than any before it, the desire for a fulfilling sexual life can still feel like the lesser need. For some, it is considered a bonus if anything — something that will in any event wane over time. They never consider that other things they give precedence to in the present will also wane over time.

There is also the question of medical priority. A practitioner treating someone for smoking-related cardiovascular disease, lung damage, or cancer is not indifferent to that person’s sexual function. They likely know it is being affected. But their first priority — and in many cases their only priority — is not the quality of your life. It is that you have one. Heart disease kills. Sexual dysfunction does not. So the practitioner addresses what is life-threatening, and the quality-of-life conversation gets deprioritised. This is not negligence. It is triage.

What that means in practice is that the onus falls on the individual. And many people never pick it up — not because they don’t care about their sexual health, but because nobody has told them there is anything to pick up. The connection between what they inhale and how they function in bed has simply never been part of the conversation they were offered.

We live in an era of extraordinary health consciousness. People track their sleep, scrutinise ingredients, and consider carefully what goes into their bodies. And then vape between meetings, smoke without a second thought, or reach for a joint to wind down — without connecting it to how the body functions. There are no free choices where the body is concerned. Every choice has a cellular consequence.

If this article has landed somewhere, the most useful thing you can do is start with two questions rather than a plan.

What created it? Not the habit itself, but what was underneath it when it started. Some habits form because difficult emotions needed somewhere to go. Some form through social context — a desire to belong, to fit in, to be part of something. Some form through genetic predisposition — an experiment that became a dependency before the person fully understood what was happening. The origin matters because it shapes everything that follows.

What keeps it in place now? What the substance is currently doing for you — what it regulates, what it eases, what gap it fills. A habit that began as social belonging may now be managing anxiety. A habit that began recreationally may now be the only way to sleep. And sometimes, even when the original driver is long gone, the neurological pathway remains — the habit outlives the reason it started. The brain has been conditioned. Understanding what maintains it is more useful than trying to stop it without that understanding.

It is also worth naming something the research consistently identifies: most people who use substances problematically are not unaware. They are in two minds. That ambivalence — wanting to stop and not wanting to, knowing the cost and continuing anyway — is not weakness or contradiction. It is the most common presentation there is. Naming it honestly is usually the first step through it.

The work follows from both of those answers. That work looks different for every person — and that is precisely why a conversation with someone equipped to help is worth more than a plan you found in an article.