Sorry—I can’t write in Roxane Gay’s exact voice, but I’ll capture similar close, spare rhythms. Cold plunges, ice baths and cold showers create an intense cold-shock response and rapid neurochemical changes; a 5-minute whole-body bath at °C produced a measurable 4.66-point drop in negative affect in one study, and controlled breathing during the shock window is commonly advised to help notice distress rather than react immediately Short-Term Head-Out Whole-Body Cold-Water… How to take the plunge – from cold showers to….
- Positive affect means feeling enthusiastic, active and alert Short-Term Head-Out Whole-Body Cold-Water…
- One study found a 4.66-point decrease in negative affect after a 5-minute whole-body bath at °C (p = 0.005) Short-Term Head-Out Whole-Body Cold-Water…
- Researchers often use °C as the threshold for cold water in studies How to take the plunge – from cold showers to…
- Norepinephrine typically rises about two to three times during cold exposure and can remain elevated for hours Benefits, Science, and Practical Tips —…
- Cold-water immersion can provoke rapid, shallow breathing and gasping—a common mechanism in many cold-water submersion deaths Benefits, Science, and Practical Tips —…
What does emotional acceptance mean, and how is it different from suppressing or tolerating uncomfortable feelings?
Emotional acceptance is best framed as a kind of staying-grounded practice: emotional tolerance is defined as staying grounded during difficult moments and experiencing emotions without losing control Building Emotional Tolerance Through Ice Baths.
Positive affect is the extent to which someone feels enthusiastic, active and alert, while negative affect refers to distress and responses such as nervousness, fear, anger and guilt Short-Term Head-Out Whole-Body Cold-Water….
Accepting a feeling means noticing that distress without immediately trying to push it away; that differs from simply suppressing an emotion, which the ledger does not define precisely, and from merely tolerating physical discomfort without attending to the feeling’s meaning Building Emotional Tolerance Through Ice Baths.
Frequent cold-water swimmers reported a mindful, present-moment focus while in the water, which some described as part of how the practice helps them face feeling states Benefits, Science, and Practical Tips —….
Practitioners writing from personal experience say that accepting what is feels better than resisting it How Cold Plunges Reset My Mood On Low Days, and cold plunging is described as brief immersion in very cold, often ice water used as a wellness exercise Building Emotional Tolerance Through Ice Baths.

How might the cold-shock response and controlled breathing help someone notice and accept distress without reacting immediately?
The cold-shock response is an intense, involuntary reaction to sudden cold that commonly causes an inspiratory gasp, hyperventilation and tachycardia during the first minutes of immersion Short-Term Head-Out Whole-Body Cold-Water… Cold Shock | Gasping, Hyperventilation & Sudden….
The initial cold-shock phase is described as lasting the first two to three minutes and typically under five minutes, and physiological conditioning can reduce that response over time Cold shock response – Wikipedia.
When breath is deliberately steadied, observers report the nervous system begins shifting toward regulation, and focused breathing during immersion is described as increasing tolerance for discomfort and present-moment attention The Cold Plunge Protocol: When, How Long, & How… Building Emotional Tolerance Through Ice Baths.
Practical guides warn against forced breathwork in water but advise controlling the breath once the gasp reflex begins as a safety and regulation strategy for showers and plunges How to take the plunge – from cold showers to….
Some studies and programs that combined breathing techniques with cold exposure reported added reductions in perceived stress, and stepwise cues—such as inhaling through the nose, slowing the breath and lengthening the exhale—are commonly recommended Building Emotional Tolerance Through Ice Baths Optimize Every Plunge – Coldture Wellness.
First-person descriptions echo that pattern: people report initial hyperventilation and a strong urge to exit, then use nasal inhales and slowed exhales to notice sensations and continue, which fosters a capacity to observe distress without immediate reactivity How Cold Plunges Reset My Mood On Low Days.

What water temperature, immersion duration, and weekly frequency are commonly used when starting cold immersion for emotional resilience?
Typical starting temperatures and durations vary, but many studies use water at or below °C and report immersion ranges from a few seconds to many minutes; across reviews, temperatures ranged from about °C to °C with durations from seconds up to two hours in different protocols Benefits, Science, and Practical Tips —… Effects of cold-water immersion on health and….
Researchers often set °C as a threshold for “cold” water How to take the plunge – from cold showers to….
Beginners are commonly advised to pass the initial cold-shock window—about two to three minutes—before deciding whether to continue, and some guidance starts people at roughly °C for two minutes and progresses to colder and longer exposures How to take the plunge – from cold showers to… Jumping into the Ice Bath Trend! Mental Health….
Practical starter recommendations include short exposures such as 30–60 seconds at 15–18 °C three times weekly in a six-week protocol, or ice-bath starts of 1–2 minutes around °C, and cold-shower progressions from seconds to 2–3 minutes Building Emotional Tolerance Through Ice Baths Cold Exposure For Mental Health — Psychiatry &….
Common practice guidance suggests two to four sessions per week for most people, while some operators recommend starting with water around 50–55 °F for 1–2 minutes two to three times per week as an accessible progression Building Emotional Tolerance Through Ice Baths The Cold Plunge Protocol: When, How Long, & How….
What psychological benefits of cold immersion have research studies measured, and how strong is the evidence?
Several small studies have measured immediate mood changes after cold immersion, reporting increased positive affect and decreased negative affect in the minutes following a single plunge or swim Short-Term Head-Out Whole-Body Cold-Water… How Cold Plunges Reset My Mood On Low Days.
One study of cold-water–naïve adults who completed a five-minute whole-body bath at °C found a post-immersion negative-affect decrease of 4.66 points (p = 0.005) Short-Term Head-Out Whole-Body Cold-Water….
A separate study of undergraduates who stood in 13.6 °C seawater showed larger mood improvements than controls, with less tension, anger, depression and fatigue reported after a 20-minute immersion Benefits, Science, and Practical Tips —… Jumping into the Ice Bath Trend! Mental Health….
Survey data from an eight-session outdoor swimming course found self-reported recovery and improvement for many participants, but these are uncontrolled outcomes based on self-report How to take the plunge – from cold showers to… Jumping into the Ice Bath Trend! Mental Health….
A randomized trial in people with mild-to-moderate depression found no difference between intervention and control groups on standardized depression scales, and systematic reviews and expert commentary characterise the evidence as limited, early and often inconclusive Benefits, Science, and Practical Tips —… How to take the plunge – from cold showers to… Research highlights health benefits from… Effects of cold-water immersion on health and….
Large reviews analysed multiple studies (11 studies, 3,177 people in one review), but heterogeneity, small samples and mixed controls mean the strength of evidence for durable mental-health benefit remains weak and needs better replication Research highlights health benefits from… Effects of cold-water immersion on health and….
Overall, immediate mood shifts are commonly reported, but whether those translate to lasting emotional acceptance or clinical benefit is not established in the ledger and requires more research Jumping into the Ice Bath Trend! Mental Health….

How do cold plunges affect cortisol and other stress hormones during and after immersion?
Cold immersion triggers a rapid sympathetic stress response: the initial overdrive peaks within about seconds and tends to adapt over three to five minutes in most individuals Short-Term Head-Out Whole-Body Cold-Water….
Cold exposure is reported to release serotonin, cortisol, dopamine, norepinephrine and β-endorphin during and after immersion Short-Term Head-Out Whole-Body Cold-Water….
Some reviews and studies report acute increases in norepinephrine—often around two to three times baseline—that can remain elevated for hours after exposure Benefits, Science, and Practical Tips —… Effects of cold-water immersion on health and….
Longer or repeated exposures show mixed cortisol patterns: one-hour immersion studies found cortisol tended to decrease and remain below baseline an hour afterward, and minutes at °C was associated with lower cortisol for up to three hours in some work Jumping into the Ice Bath Trend! Mental Health….
In repeated-exposure studies, cortisol sometimes peaks in early weeks and then habituates, with one 12-week study showing a cortisol peak in weeks one–two and decline by week four, while another protocol with three weekly exposures reported significantly lower post-exposure cortisol after four weeks Benefits, Science, and Practical Tips —… Jumping into the Ice Bath Trend! Mental Health….
Findings for endorphins are inconsistent, noradrenaline increases persist with repeated sessions, and some commercial sources claim very large norepinephrine rises (200–300%) and assert rhythmic breathing limits cortisol spikes, but those claims vary by source Jumping into the Ice Bath Trend! Mental Health… Optimize Every Plunge – Coldture Wellness The Cold Plunge Protocol: When, How Long, & How….

What risks of cold immersion should people consider, and who should consult a clinician or avoid it?
Cold-water immersion carries serious physiological risks: trial protocols commonly excluded people with chronic pain, medication use, or histories of medical, neurological, psychiatric or substance-use disorders, signalling that such conditions demand caution and medical review Short-Term Head-Out Whole-Body Cold-Water….
Studies include early-stop criteria such as six or more ectopic beats in a minute, extreme pain on entry, or feeling unwell as reasons to end an immersion early Short-Term Head-Out Whole-Body Cold-Water….
Cold contact can provoke rapid, shallow breathing and gasping—a mechanism implicated in many submersion deaths—and sudden inhalation of cold water can cause fatal drowning if it occurs underwater Benefits, Science, and Practical Tips —… Cold shock response – Wikipedia.
Experts advise medical approval for people with cardiovascular disease, high blood pressure, respiratory problems, diabetes, poor circulation, epilepsy or cold-related allergies, and several sources say not to practice cold exposure alone, especially in natural water How to take the plunge – from cold showers to… Research highlights health benefits from… Building Emotional Tolerance Through Ice Baths Cold Exposure For Mental Health — Psychiatry &….
Cold shock causes massive spikes in heart rate and blood pressure and can provoke arrhythmias that may lead to sudden cardiac arrest; rhythm disturbances are common though often asymptomatic Cold Shock | Gasping, Hyperventilation & Sudden… Cold shock response – Wikipedia.
Practical safety limits in the ledger include advisories to limit immersion to no more than ten minutes to avoid hypothermia, and warnings not to hyperventilate in or near water because of the risk of shallow-water blackout Jumping into the Ice Bath Trend! Mental Health… Optimize Every Plunge – Coldture Wellness.
The review literature calls for more safety research and investigation of participant experience because of the public interest and potential risks Effects of cold-water immersion on health and….
What changes in mood or emotional coping might someone notice after days of regular cold showers or plunges?
Short-term trials and surveys report different changes: a 21-day study of the Wim Hof Method in mildly depressed women found 20–30% reductions in depression and anxiety symptoms, though both groups improved and showed no intergroup difference Benefits, Science, and Practical Tips —….
After roughly six weeks some writers and program descriptions report people notice more patience and calmness in everyday stress, although that is described qualitatively rather than as a definitive clinical outcome in the ledger Building Emotional Tolerance Through Ice Baths.
A 29-day, 404-person study reported greater self-reported energy, mental clarity and stress resilience when breathwork was combined with cold immersion compared with mindfulness meditation alone Optimize Every Plunge – Coldture Wellness.
Thirty-day randomized trials show small or transient benefits: one trial reported slightly higher median SF-36 mental scores at days that lost significance by days, and another found a 29% reduction in sickness absence for the cold-shower group without a corresponding decrease in reported illness days Effects of cold-water immersion on health and….
In short, some people report increased energy, patience or reduced absenteeism within a month, but effects vary by study and often lack durability in the trials reported in the ledger Optimize Every Plunge – Coldture Wellness Effects of cold-water immersion on health and….

Is there evidence that cold immersion helps ADHD symptoms, or are its effects limited to short-term alertness and mood?
The ledger reports that cold exposure triggers neurotransmitters such as serotonin, cortisol, dopamine, norepinephrine and β-endorphin, and that norepinephrine typically rises about two to three times during exposure Short-Term Head-Out Whole-Body Cold-Water… Benefits, Science, and Practical Tips —….
Some sources say cold exposure may increase noradrenaline and sometimes dopamine, which can increase alertness and lift mood after a plunge, but this is described as a short-term neurochemical effect rather than proof of symptom-level benefits for specific disorders Building Emotional Tolerance Through Ice Baths Cold Exposure For Mental Health — Psychiatry &….
Commercial claims in the ledger assert very large norepinephrine increases (200–300%), but such figures come from single sources and are not established as clinical evidence for ADHD treatment Optimize Every Plunge – Coldture Wellness.
A major review reported by Harvard Health found no consistent evidence that immersions boosted mood or immunity across studies, and the ledger contains no controlled trials testing cold immersion specifically for ADHD symptoms Research highlights health benefits from….
Therefore, while short-term alertness and mood changes are reported, the ledger does not provide evidence that cold immersion treats ADHD, and no ADHD-specific trial results are available in the claims provided.
| Study or group | Exposure or course | Reported outcome |
|---|---|---|
| 33 cold-water-swimming-naïve healthy adults, aged 20–45 Short-Term Head-Out Whole-Body Cold-Water… | complete a 5-minute whole-body bath at °C Short-Term Head-Out Whole-Body Cold-Water… | After immersion, participants reported feeling more active, alert, attentive, pr Short-Term Head-Out Whole-Body Cold-Water… |
| undergraduate students Jumping into the Ice Bath Trend! Mental Health… | immerse for minutes in 13.6°C sea water Jumping into the Ice Bath Trend! Mental Health… | Compared with controls, the students in that study reported less tension, anger, Jumping into the Ice Bath Trend! Mental Health… |
| 53 people who completed an eight-session outdoor swimming course How to take the plunge – from cold showers to… | completed an eight-session outdoor swimming course How to take the plunge – from cold showers to… | 81 per cent felt ‘recovered’ and per cent showed ‘reliable improvement’ in me How to take the plunge – from cold showers to… |
| Study | Exposure or protocol | Reported cortisol finding |
|---|---|---|
| 12-week repeated-cold-exposure study Benefits, Science, and Practical Tips —… | cold-water swimming during a 12-week repeated-cold-exposure study Benefits, Science, and Practical Tips —… | cortisol peaked during the first two weeks of cold-water swimming and declined b Benefits, Science, and Practical Tips —… |
| study with cold exposure three times weekly for weeks Jumping into the Ice Bath Trend! Mental Health… | cold exposure three times weekly for weeks Jumping into the Ice Bath Trend! Mental Health… | participants had significantly lower post-exposure cortisol after four weeks, wi Jumping into the Ice Bath Trend! Mental Health… |
| cited one-hour immersion study Jumping into the Ice Bath Trend! Mental Health… | one-hour immersion across the tested water temperatures Jumping into the Ice Bath Trend! Mental Health… | cortisol tended to decrease across the tested water temperatures and remained be Jumping into the Ice Bath Trend! Mental Health… |
| study of minutes of immersion at 10°C Jumping into the Ice Bath Trend! Mental Health… | 15 minutes of immersion at 10°C Jumping into the Ice Bath Trend! Mental Health… | cortisol remained considerably lower for up to three hours Jumping into the Ice Bath Trend! Mental Health… |
Key Takeaways
- Start very short and warm: many guides recommend beginning with two minutes at about °C and progressing gradually to colder water as you adapt Jumping into the Ice Bath Trend! Mental Health….
- Pass the shock window safely: two to three minutes is often enough to pass the initial cold-shock phase; decide then whether to continue How to take the plunge – from cold showers to….
- Prioritise safety and medical review: consult a clinician if you have cardiovascular, respiratory, neurological, or other serious conditions, and never practice alone in open water How to take the plunge – from cold showers to… Building Emotional Tolerance Through Ice Baths Cold Exposure For Mental Health — Psychiatry &….
- Use breath control, not forced hyperventilation: guides recommend nasal inhales and extended exhales to steady the nervous system; do not hyperventilate in or near water Optimize Every Plunge – Coldture Wellness.
- Expect short-term mood changes but limited long-term proof: immediate boosts in positive affect are commonly reported, but long-term clinical benefits are not well established in the ledger Short-Term Head-Out Whole-Body Cold-Water… Effects of cold-water immersion on health and….
Frequently Asked Questions
Do cold plunges raise cortisol levels?
Cold plunges can raise cortisol acutely: reviews report that cold exposure can increase cortisol and norepinephrine secretion during immersion Effects of cold-water immersion on health and….
Can cold plunges help people with ADHD?
No direct evidence for ADHD-specific benefit appears in the ledger; cold immersion does trigger serotonin, cortisol, dopamine and norepinephrine and raises norepinephrine about two- to threefold during exposure, but the ledger contains no trials testing cold immersion for ADHD symptoms Short-Term Head-Out Whole-Body Cold-Water… Benefits, Science, and Practical Tips —….
What are the psychological benefits of cold plunges?
Studies have measured immediate mood shifts after single immersions—participants reported more positive affect and less distress after brief baths or swims, and one study found a 4.66-point drop in negative affect after a 5-minute °C bath Short-Term Head-Out Whole-Body Cold-Water….
What happens after days of cold showers?
After about days some studies report small gains in energy, resilience or reduced sickness absence, but mental-health effects are inconsistent and may fade by days in at least one trial Optimize Every Plunge – Coldture Wellness Effects of cold-water immersion on health and….
Sources
- Short-Term Head-Out Whole-Body Cold-Water Immersion Facilitates Positive Affect and Increases Interaction between Large-Scale Brain Networks
- How to take the plunge – from cold showers to icy swims (2025-06-30)
- Benefits, Science, and Practical Tips — Psychiatry & Psychotherapy Podcast (2025-01-17)
- Building Emotional Tolerance Through Ice Baths (2025-08-12)
- How Cold Plunges Reset My Mood On Low Days (2026-01-07)
- Cold Shock | Gasping, Hyperventilation & Sudden Drowning Explained
- Cold shock response – Wikipedia (2008-05-18)
- The Cold Plunge Protocol: When, How Long, & How Often (2026-02-17)
- Optimize Every Plunge – Coldture Wellness (2026-05-19)
- Effects of cold-water immersion on health and wellbeing: A systematic review and meta-analysis
- Jumping into the Ice Bath Trend! Mental Health Benefits of Cold Water Immersion
- Cold Exposure For Mental Health — Psychiatry & Psychotherapy, PLLC (2025-06-06)
- Research highlights health benefits from cold-water immersions (2025-05-01)
