There is a video. 2003. First year of medical school, Eldoret, a study group break, someone with a small camera in the era when cameras were still separate objects from phones.
Everyone in the frame is laughing because someone told a joke I cannot remember. My laugh is the loudest one. Head back. Mouth wide. The laugh that starts in the belly and arrives without checking whether the room has been properly assessed for appropriate laugh volume. It is unselfconscious in the way that breathing is unselfconscious, in the way that only things which have not yet been trained out of you remain.
I watched that video last year and barely recognized the sound.
Not because my voice has changed, though it has changed. Because the laugh has changed. The laugh I make now is quieter, more contained, a competent laugh that communicates “I have found this amusing” without committing to the position with my whole body. I trained the original laugh out of myself over about fifteen years, in the way you train out any behavior that has been identified as belonging to a category you are trying to leave.
Here is how the training began.
First year of university. Lecture hall, maybe two hundred students from different parts of the country, different kinds of families, different understandings of what sophistication looked like. The professor said something, I do not remember what, and I laughed. Not performed. Just reflex. The laugh I had always had, from the village, from years of family gatherings where laughter was the loudest and most continuous sound in any room.
A few heads turned. Not unkindly. Just noticing.
After class, a classmate, friendly enough, said: “You’re from upcountry, yeah? I can tell. Your laugh is very village.”
He meant it as observation. I heard it as verdict.
I started paying attention to how other people laughed in academic spaces. A chuckle. A smile. A nod of acknowledgment that the thing was funny without committing to anything as committal as sound. Loud laughter was for home. For the village. For people who had not learned to fit the spaces that advancement required. So I learned. I trained myself to smile instead of shout. To produce the evidence of amusement without producing the amusement itself.
By the time I reached residency, the training was complete. Medicine has an emotional dress code. You can be confident. You can be precise. You can be warm in a calibrated way. What you cannot be is too much. Too loud. Too expressive. Too anything that draws attention to the fact that you have a full human interior inside the white coat. Modulation is professionalism. And I modulated everything, including joy.
Robert Provine spent decades studying laughter and documented something that matters here: laughter is primarily social, a signal of connection and safety rather than a response to humor alone (Provine 2000, Laughter: A Scientific Investigation, reviewed in American Scientist). Robin Dunbar and colleagues extended this in work on laughter’s role in social bonding, showing that laughter activates the same endorphin-release mechanism as physical grooming, that it is one of the primary mechanisms by which social bonds are formed and maintained (Dunbar et al. 2012, Proceedings of the Royal Society B, https://doi.org/10.1098/rspb.2011.1373). Honesty Scale: Promising for the endorphin mechanism; Solid for the social-signaling function. What I had been training out of myself was not just a sound. I had been training out one of the primary signals by which two people recognize each other as safe.
Here is what I had not understood: every time I modified the laugh, I was modifying the signal. I was making myself smaller in the precise sense that social neuroscience uses the word: less available to connection, more visibly controlled, more expensive to reach.
I went back to Kenya in 2019 for the first time in two years. Family gathering. Cousins, aunts, uncles. The noise of it, which I had forgotten. My cousin Siekei said something ridiculous, the kind of joke that you cannot explain to anyone who was not there, and the whole room erupted. I laughed too. The American laugh now, the professional one. Contained. Appropriate.
My aunt looked at me. She is a woman of specific observations. “Job,” she said, “why do you laugh like you’re in a meeting?”
Everyone laughed. Including me. The controlled one.
She shook her head. “That’s not your laugh. Where did your real laugh go?”
I did not have an answer. Because I did not know I had lost it. I thought I had matured. I thought I had learned to fit. I did not realize I had paid for the fitting with a piece of my presence.
The laugh is a particular kind of information about a person. It is one of the few sounds the body makes that arrives before the mind edits it, or that is supposed to, before training overrides the reflex. What you do with a thing that is genuinely funny is an act of disclosure. The edited laugh discloses that you have found something amusing and have decided to tell you so in a way that does not compromise your professional presentation. The real laugh discloses something more: that you are here, fully, that something reached you at the floor of you and the floor responded. The real laugh is an announcement of presence. The controlled laugh is an announcement that someone is managing the announcement of presence.
What I lost when I lost the laugh was not a volume setting. It was a kind of availability. Somewhere along the way I stopped letting things reach the floor of me. I stopped making the floor of me available to things.
In clinic I see this pattern. Not with laughter specifically, though sometimes with laughter. I see it with people who have excellent professional presentations and very little available underneath. Whatever was unguarded in them got trained out somewhere in the passage from where they started to where they arrived. The training was often necessary. The university lecture hall or the residency program or the boardroom or the immigration queue actually did require, in practical terms, a certain kind of containment. The mistake is believing the containment is the arrival point rather than the survival strategy.
A Scottish classmate said to me in a pub near the graduate school campus in Glasgow: “You’re funnier than that laugh suggests.” He was right. The laugh did not match what I was feeling. The laugh had been designed to pass through the room without declaring too much. What it was supposed to declare had been exiled years before.
I practice unlearning now. When something is funny, I do not check the room first. I do not calculate the volume. My aunt, when I visit, smiles when she hears it. “There it is,” she says. Not Dr. Mogire. Just Job.
The laugh that bypasses your throat and comes from your belly is a small piece of the person you were before you learned to be impressive. Let me go deeper into the mechanism, because this is a deep-dive chapter and the mechanism deserves its full examination.
What is the laugh, physiologically, and what happens to it under social pressure?
The vocalization of genuine laughter involves the same neural circuitry as spontaneous emotional expression. It is driven by subcortical structures, the brainstem and limbic system, before the prefrontal cortex processes it. This matters because the prefrontal cortex is the part of the brain that weighs social appropriateness. When a laugh is genuinely spontaneous, the subcortical system fires first and the laughter emerges before the evaluating mind can intercede. When the laughter has been trained, the prefrontal cortex has been taught to intercept the signal before it reaches expression. The interception is nearly invisible. It happens in milliseconds. But over time, as the interception becomes reflexive, the subcortical signal starts arriving weaker, because systems that are consistently overridden gradually reduce their output.
In plain clinical language: you can train yourself out of the reflex.
Provine’s work documented that laughter is thirty times more likely to occur in social contexts than in solitary ones, which confirms what the evolutionary account would predict: laughter is not primarily a response to humor. It is primarily a signal to another person that you are present, that you are safe, that the current moment is one of closeness rather than threat. The withholding of genuine laughter in social contexts is, from this angle, a signal of threat. Not the threat of physical danger, but the social threat that a person under pressure to perform calibrates continuously: the threat of being seen as belonging to the wrong category.
When I trained out my village laugh in that Eldoret lecture hall, I was managing a social threat. I was signaling, to a room of people whose laughter was restrained and calibrated, that I understood the code, that I was not going to mark myself as someone who did not understand the code. The management was rational. It cost me something I did not know I was spending.
What I did not know, at twenty, was that the laugh was doing something important for the people around me as well as for myself. Dunbar’s endorphin mechanism means that when one person laughs genuinely in a room, it creates a physiological opening in the people nearby. The genuine laugh is, in some measurable sense, an offering. It says: I am here, this reached me, and I am sharing the reaching with you. The controlled laugh does not make that offering. The controlled laugh says: I have assessed this situation and determined that a limited expression of amusement is appropriate. There is nothing wrong with that sentence. There is also nothing nourishing about it.
My aunt, sitting in the gathering in Sengera in 2019, said “that’s not your laugh.” She was not critiquing my affect management. She was telling me that she could not reach me with the controlled laugh in the way she could reach me with the real one. The laugh was a door, and I had been keeping it almost-closed for years, and she noticed.
Here is the permission paragraph for this, and I want to say it plainly: if you have trained something out of yourself in service of a room that is no longer the room you are in, the training was not permanent. What was trained can be untrained. The original sound is still there, underneath the management. You can bring it back the way you bring back any physical behavior that has been suppressed: by allowing it, small, deliberately, in contexts where you trust the room, and watching it remember itself.
What to do this week: one experiment. Find something genuinely funny, something that requires the real laugh, not the polite one. Let it come. Don’t redirect it. Don’t contain it. Let the room hear what you actually sound like when something reaches the floor of you.
The next chapter is about the arithmetic running your life, the equations you absorbed before you could read and have never stopped solving.
A Mirror
Describe your current laugh. Now describe the laugh you remember having before your professional formation. What is the difference?
What else, besides laughter, have you trained yourself to contain in professional or social contexts? Name the specific expression, not the general category.
When was the last time something reached you at the floor? Where were you? Who was there?
Who told you, explicitly or implicitly, that your natural expression was too much? What was the specific moment or message?
What would it cost socially or professionally to bring more of your uncontrolled response into the spaces you currently inhabit? Is that cost as high as you have been calculating? ---
Letter from Dr. Job
Subject: Where the laugh used to come from
My aunt asked me where my laugh went, and I did not have an answer.
I had not noticed it leaving. I had been too busy learning to fit the rooms I was entering to notice what I was leaving behind at the door. By the time I noticed the absence, the absence had become my professional presentation.
The real laugh has been coming back. Slowly. In contexts where I trust the room. At the family gathering, the panel I was not expecting to enjoy, the call with a friend who knew me before the formation.
My aunt says “there you are” when she hears it. That is the point. The laugh is not just noise. It is location. It announces: I am here, fully, in this specific moment, reachable.
You were not made to be reachable only in private.
This week: let something funny be actually funny. Let your body tell the truth about it.
The next chapter is about the arithmetic. You know the one.
— Job