Mosaic Education Series
Microdosing and the
Mental Game
The science of what happens in your head during training and competition, and why that is where most athletes actually lose.
01
Part One
Most athletes lose in mind, not in body
The research on flow, focus, and what happens when the inner commentary stops
Golf Digest, October 2023
"Psilocybin allows me to get a deep breath on the course that I haven't been able to get in years."
On the record
He is not alone.
Public statements from athletes across five different sports
NFL
Aaron Rodgers
Spoke publicly at the 2023 Psychedelic Science Conference in Denver about his psychedelic use and healing.
NHL
Daniel Carcillo
Told CNN he regularly microdoses psilocybin. His EEG came back clear for the first time after years of post-concussion symptoms.
Boxing
Mike Tyson
"The focus you get from shrooms doesn't compare to anything."
NFL
Kenny Stills
Went public in Sports Illustrated about using psychedelic therapy for depression during his playing career.
UFC
Ian McCall
"Flow is everything. Microdosing helps me get there more often."
The athletes willing to say it out loud are still a small group. The athletes doing it quietly are, by every available account, a much larger one. And they are all pointing at the same thing: the mental game.
If any of these are the story of your last season
The mental game is where most performance actually gets won or lost
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You trained for it, then choked in the moment that mattered
β
You can no longer drop into the flow state you used to find without thinking
β
Your best performances feel like they are behind you
β
You finish events thinking about what your body did wrong, not what it did right
β
You second-guess every decision mid-performance
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You cannot turn the sport off mentally, even on rest days
This is not a fitness problem. This is a nervous system problem.
What the science actually says
The thing athletes call "being in the zone" has a measurable neurological signature. It is the quieting of the Default Mode Network.
The Default Mode Network is the brain's self-referential circuit, the one that narrates what you are doing while you are doing it. In flow states, this network goes quiet. fMRI studies have confirmed this across sport, music, and performance research. The athletes who talk about "getting out of their head" are describing a real, measurable shift in brain activity.
What the research says
Mental performance, by the numbers
βDMN
Flow states are confirmed by reduced Default Mode Network activity
Multiple fMRI studies show that the brain's self-referential circuit goes quiet during flow. This is the neural signature of "getting out of your head."
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Brain networks coordinate to produce flow
Flow depends on the interaction between the Default Mode Network (self-talk), the Central Executive Network (focused attention), and the Salience Network (moment-to-moment awareness). Training the first to quiet is the bottleneck for most athletes.
252
Studies link flow directly to peak performance
A scoping review across 252 studies found consistent links between flow, performance, and enjoyment in sport and task contexts. Athletes in flow perform at their actual ceiling. Athletes out of flow perform below it.
+mood
Flow inversely correlates with performance anxiety
Performers trained to access flow states showed decreased anxiety and increased performance simultaneously. The anxiety and the flow share neural real estate. Quieting one enables the other.
In plain language
The reason you choked is that the voice narrating your performance got louder than the part of your brain doing the performance. The reason flow feels effortless is that the narrator has temporarily stopped talking. This is measurable, and it is trainable.
Now here is the question that matters for this guide: does microdosing psilocybin have any relationship to this mechanism? The honest answer is that it does, but the evidence is still early. The same network (DMN) that quiets during flow is the same network that psilocybin has been shown to quiet at both full and microdose levels. That is not proof that microdosing reliably produces flow states during athletic performance. It is a reasoned bridge between two well-researched things.
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02
Part Two
How psilocybin works, and what it may help with for athletes
Four mechanisms, each connected to a specific mental-game problem
Psilocybin is the active compound in psilocybin mushrooms. At a microdose, roughly one-tenth of a perceptible dose, there are no visual effects, no altered consciousness, and no impairment. Below are the four things researchers have observed psilocybin doing in the brain, and for each one, how it connects to a specific problem athletes consistently name.
Mechanism 01
It quiets the Default Mode Network (the inner narrator)
Brain imaging shows psilocybin reduces activity in the Default Mode Network, the same network that flow research has identified as the one that quiets during peak performance. This is the strongest mechanistic overlap between what microdosing does and what athletes need. (Carhart-Harris et al., PNAS, 2012)
Plain language: the narrator in your head that second-guesses your swing, your stride, or your shot is running in the DMN. Psilocybin turns the narrator's volume down. Flow is what happens when the narrator is quiet.
β³ How this shows up in training and competition
- Dropping into flow faster, especially early in a session or race. Less warm-up is needed when the internal chatter is already lower.
- Not choking when it matters. Choking is the narrator hijacking the performance. A quieter narrator is harder to hijack.
- Staying in the body, not the head, during the event. Athletes describe this as "letting the training take over."
Mechanism 02
It reduces performance anxiety and stress reactivity
Psilocybin acts on the 5-HT2A serotonin receptor, the same receptor system involved in mood regulation, fear processing, and stress response. Naturalistic studies of microdosers consistently show reductions in anxiety and stress, with stress reduction one of the most reliable effects reported. (Rootman et al., Scientific Reports, 2021)
Plain language: the butterflies before an event, the clutched throat during, the spiral after. That is your amygdala firing. Psilocybin modulates the system that amplifies it.
β³ How this shows up in training and competition
- Pre-competition nerves that do not tip into panic. The useful edge stays. The disabling part softens.
- Recovering from a mistake mid-event instead of spiraling. The next play, the next mile, the next lift is not contaminated by the last one.
- Racing or competing without the "what if I fail" loop running in the background.
Mechanism 03
It enhances adaptive thinking and game-reading
A controlled microdose study documented improvements in both convergent thinking (finding the right answer to a defined problem) and divergent thinking (generating new approaches). Both matter in sport, especially in situations where the plan goes sideways and you need to adapt on the fly. (Prochazkova et al., Psychopharmacology, 2018)
Plain language: this is the thing that lets you read the game, adjust your pacing when the plan is not working, or find the angle you did not see yesterday. It is a thinking skill with neural correlates, and microdosing appears to improve it.
β³ How this shows up in training and competition
- Reading a race, a ride, or a match differently. You see openings you would have missed.
- Adjusting pacing or tactics mid-event without panic. Plan B emerges faster.
- Finding new ways to train. When a program stops working, you see alternatives instead of just grinding harder.
Mechanism 04
It supports mood baseline and emotional availability
Microdose naturalistic studies show reductions in depression, anxiety, and stress, and increases in mood and life satisfaction. A depleted mood floor kills training consistency. It also kills the joy of the sport, which is the thing that got you here in the first place. (Rootman et al., Scientific Reports, 2021)
Plain language: the reason you stop showing up to training is almost never your body. It is your relationship with the sport. Mood floor is where that relationship lives.
β³ How this shows up in training and competition
- Waking up wanting to train. Consistency is almost entirely a mood problem.
- Remembering why you started. The sport becomes enjoyable again, not just a performance obligation.
- Recovering emotionally from setbacks. A bad race does not end a season mentally.
If this sounds like you, here is what microdosing may do
A direct map from the mental-game problem to the underlying mechanism
If you experience
What microdosing may do
What that means in training or competition
Swipe to explore
Choking in the moments you have trained for
Microdosing quiets the DMN (the inner narrator)
You stay in the body, not in the commentary
Not being able to drop into flow anymore
Microdosing overlaps mechanistically with the neural signature of flow
Flow becomes accessible earlier and more often
Second-guessing every decision mid-performance
Microdosing reduces rumination and self-referential chatter
You commit to decisions instead of relitigating them
Pre-competition anxiety that disables you
Microdosing modulates 5-HT2A and fear response
Useful edge stays, disabling part softens
Lost the joy of the sport entirely
Microdosing raises mood baseline
Showing up feels like something you want, not something you owe
Can't read the game like you used to
Microdosing improves divergent and convergent thinking
Tactics and pacing adjustments emerge faster
Overtraining mentally, can't turn the sport off
Microdosing supports parasympathetic recovery and sleep
Rest days are actually restful, not rumination time
One more thing
A note on recovery and sleep
The mental game is the strongest evidence base for microdosing in athletes. But there is a second one worth naming: recovery. The body adapts to training during rest, not during work. Poor sleep and sympathetic nervous system dominance (the inability to downshift into "rest and digest") are two of the most undertreated reasons athletes plateau.
Microdose naturalistic data shows improvements in sleep quality, stress, and parasympathetic regulation. These are adjacent to the mental-game benefits above, but they matter specifically for athletes because adaptation depends on recovery.
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Reported sleep quality in microdose surveys
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Cortisol and sympathetic tone
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Anxiety and rumination at night
The research on this is naturalistic rather than controlled. The mechanism (5-HT2A modulation of stress response, DMN quieting before sleep) is plausible. The effect size is not yet precisely measured. But it matches what athletes tell us: the night before a race feels different. The morning after a hard workout feels different. The gap between sessions closes.
An honest disclosure
There is no controlled peer-reviewed research on microdosing and direct physical performance markers (VO2 max, strength, endurance). We are not going to pretend there is. What the research supports is the mental game: flow access, performance anxiety, adaptive thinking, and mood baseline, with recovery as an adjacent mechanism. For most athletes, that is where the ceiling actually is. Most of us are not hitting our physical potential because of what is happening between our ears.
Want to understand how this might apply to your training?
A Mosaic guide can walk you through it
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03
Part Three
The research at a glance
What the strongest studies on microdosing, flow, and the mental game actually found
10M
US adults microdosed in 2025
RAND, 2026
19
placebo-controlled studies confirm real effects
Polito & Liknaitzky, 2024
252
studies link flow to peak performance
Frontiers, 2022
Flow neuroscience
Flow is confirmed as reduced DMN activity
Multiple fMRI studies confirm that flow states are characterized by reduced activity in the Default Mode Network, the same network responsible for self-referential thinking and inner commentary.
Psilocybin imaging
Psilocybin quiets the same network
The landmark Carhart-Harris fMRI study showed psilocybin reduces activity in the Default Mode Network. The mechanistic overlap with flow is the basis for why microdosing and mental performance are being studied together.
Microdose creativity
Measurable improvements in adaptive thinking
A controlled microdose study documented improvements in both convergent and divergent thinking, the two cognitive skills most relevant to reading a game and adjusting mid-performance.
The placebo question
The effects are real, not expectation
A systematic review of 19 placebo-controlled studies found microdosing produces measurable changes in neurobiology, physiology, affect, and cognition beyond what placebo explains.
The bottom line
Flow is measurable. Psilocybin affects the same brain network that quiets during flow. The mental-game benefits microdosers consistently report are mechanistically plausible and supported by adjacent research, even though direct athletic performance studies are still early. For the athlete trying to close the gap between their training and their performance, the mental game is usually the bottleneck.
04
Part Four
Is this the right tool for you?
A clear-eyed look at which athletes this fits, and which it doesn't
This may be a fit if
- You are committed to your sport and have identified the mental game as the thing holding you back, not your physical training
- You want a tool that pairs with your training, not a replacement for it
- You are willing to commit to a 4 to 8 week runway before judging results
- You are open to tracking your performance honestly alongside the protocol
- You are not currently taking SSRIs or other serotonergic medication
This is not the right tool if
- You compete in a sport subject to drug testing (collegiate, professional, or WADA-sanctioned competition)
- You are currently on SSRIs or other serotonergic medication
- You have a personal or family history of psychosis or bipolar disorder
- You are looking for a physical performance enhancer (this is not one)
- You want to microdose during the event itself rather than as part of a training cycle
The honest reframe
Most athletes are not limited by their bodies. They are limited by what happens in their head while their body is trying to perform.
The athlete who PRs after years of plateau usually did not find a new program. They found a way to get out of their own way.
Microdosing, for the right person, is one tool among several that appears to support this. It does not replace mental skills training, visualization work, a sleep protocol, or the right coach. But for the athlete who has trained their body to a wall they cannot get past, the research points at the same wall we are pointing at: the narrator that lives in the DMN.
The people we work with who use this for athletic reasons tend to describe the same handful of things: dropping into flow earlier in a session, staying calmer in competition, sleeping better the night before an event, and remembering why they started the sport in the first place.
Important safety notes
SSRIs and other serotonergic medications: psilocybin acts on the same receptor system. Combining them can blunt effects or, at higher doses, cause serotonin syndrome. Do not combine without provider guidance. Personal or family history of psychosis or bipolar disorder: consult a physician first. Psychedelic compounds can trigger episodes in vulnerable individuals. Drug testing: psilocybin is a controlled substance and is not permitted in sanctioned competition. Athletes subject to testing should consult their governing body before considering any controlled substance. This guide is educational. It is not medical advice.
If this resonates, the next step is a conversation
A free 15-minute call with a Mosaic guide. We will walk you through whether this is the right tool for you, what protocol to consider, and what to expect.
Book a free call
Peer-reviewed sources cited in this guide
- Carhart-Harris RL, et al. Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin. PNAS, 2012. pnas.org/doi/10.1073/pnas.1119598109
- Van der Linden D, et al. Go with the flow: A neuroscientific view on being fully engaged. Human Brain Mapping, 2021. onlinelibrary.wiley.com/doi/10.1002/hbm.25395
- Ulrich M, et al. Neural correlates of experimentally induced flow experiences. NeuroImage, 2014. pubmed.ncbi.nlm.nih.gov/25448818
- Harris DJ, Allen KL, Vine SJ, Wilson MR. A systematic review and meta-analysis of the relationship between flow states and performance. International Review of Sport and Exercise Psychology, 2021.
- Prochazkova L, et al. Exploring the effect of microdosing psychedelics on creativity in an open-label natural setting. Psychopharmacology, 2018. link.springer.com/article/10.1007/s00213-018-5049-7
- Rootman JM, et al. Adults who microdose psychedelics report health-related motivations and lower levels of anxiety and depression compared to non-microdosers. Scientific Reports, 2021. nature.com/articles/s41598-021-01811-4
- Priest M, et al. U.S. Psychedelic Use and Microdosing in 2025. RAND Corporation, 2026. rand.org/pubs/research_reports/RRA4334-1
- Priest M, et al. Psilocybin microdosing in the United States: Insights from a nationally representative survey. Addiction, 2025. pubmed.ncbi.nlm.nih.gov/41795902
- Polito V, Liknaitzky P. Is microdosing a placebo? A rapid review of low-dose LSD and psilocybin research. Journal of Psychopharmacology, 2024. journals.sagepub.com/doi/10.1177/02698811241254831
- Swann C, et al. A scoping review of flow research. Frontiers in Psychology, 2022. frontiersin.org/articles/10.3389/fpsyg.2022.815665