Quick Answer
There is no single reset. The fastest real change is five minutes of slow breathing with a long exhale, which shifts your heart rate variability during the session itself. Everything durable comes from repeating one method daily for a month. Start with the breathing, then fix your wake time, then add exercise and time outside.
**Jump to:** The seven methods at a glance | Start here | FAQ | Options for men
Disclosure: MenTools publishes this article and may feature MenTools products.
How we evaluate: Each step is assessed on real-world use, evidence, cost and time, and how well it suits men. Every step including the MenTools option carries an honest limitation. Full sources are in the references below.
The Seven Methods at a Glance

Ordered by how fast you feel it, not by how impressive it sounds.
Seven methods have real evidence behind them, and they split cleanly into two jobs. The first three change how you feel inside a session. The last four raise the level you sit at the rest of the time, which is the part that stops you needing a rescue every evening.
None of them costs anything to start and none of them needs a device. Work down the list in order rather than picking the one that sounds most interesting.
| # | Method | Time | What it changes | Watch-out |
|---|---|---|---|---|
| 1 | Long exhale breathing | 5 minutes | Mood and resting breathing rate | Dull, so men save it for emergencies |
| 2 | Slow-paced breathing | 5 to 10 minutes | Vagally mediated heart rate variability | Measured mainly during and just after |
| 3 | Non-sleep deep rest | 11 minutes | Total cortisol and its daily slope | Needs a quiet room and headphones |
| 4 | A fixed wake time | One decision | Overnight recovery and evening cortisol | The weekend is where it breaks |
| 5 | Moving the last drink | One decision | Second-half sleep and overnight recovery | It genuinely does help you drop off |
| 6 | Steady aerobic exercise | 3 sessions a week | Resting vagal tone over weeks | Nothing lands in week one |
| 7 | Time outside | 120 minutes a week | Self-reported health and wellbeing | Association, not a controlled trial |
How We Judged These
Each method had to clear three tests. The effect had to be measured in people rather than asserted by a wellness brand, a working man had to be able to start it this week without buying anything, and the size of the effect had to be stated honestly rather than implied.
That filter removes most of what is sold as nervous system work, including the gadgets, the supplement stacks and anything promising a full reset in one session. The measured effects in this field come from short practices repeated daily, which is the least marketable finding in the category.
This is general information rather than medical advice. If exhaustion, low mood or a racing heart has run for weeks, the NHS stress page is the right first stop, and the last section covers when this stops being a habits problem.
Why a Reset Is the Wrong Word
Your autonomic nervous system has two branches and neither one is the enemy. The sympathetic branch raises heart rate and blood pressure and pauses digestion, and the parasympathetic branch brings heart rate down and restores normal digestion [1]. You need both. The problem is a switch that sticks, not a branch that is bad.
That is why nothing here is a reset button. What you are actually doing is shortening the time it takes to come back down, and raising the floor you come back down to. Our guide to what nervous system regulation actually means covers the underlying physiology in full.
The main hardware for coming down is the vagus nerve, which makes up approximately 75 percent of the parasympathetic nervous system, and approximately 80 percent of its fibres are sensory rather than motor [1]. Changing something physical is therefore a more reliable lever than trying to think your way calm.
The background load is real. The Health and Safety Executive recorded 964,000 workers in Great Britain with work-related stress, depression or anxiety in 2024/25, a rate of 2,770 per 100,000 workers, costing an estimated 22.1 million working days [2].
1. Lengthen the Exhale for Five Minutes
Breathe in through your nose, take a second shorter sip of air to finish filling your lungs, then let a long slow breath out through your mouth. Do that for five minutes, with the exhale roughly twice as long as the inhale. This is the method with the clearest single trial behind it, and it is the one to start with tonight.
A randomised trial assigned 108 people to five minutes a day of one of three breathing practices or mindfulness meditation for 28 days. Cyclic sighing, the exhale-focused version above, produced the greatest improvement in mood and was the only practice that significantly lowered resting breathing rate across the day [3].
The authors concluded that “daily 5-min cyclic sighing has promise as an effective stress management exercise” [3]. That is a measured claim rather than a large one, which is the honest framing this category usually skips.
David Spiegel, one of the study’s authors and the Jack, Lulu and Sam Willson Professor in Medicine at Stanford, explained why breathing is the lever rather than one option among many. “What’s interesting about the breath is that it’s right on the edge of conscious control,” he said [4]. He added that “when we teach people to control the physical effects of a stressor on their body, it puts them in a better position to deal with the stressor itself” [4].
Watch-out: it is boring, and the trial tested it as a daily practice rather than a panic button. Men who only use it mid-crisis are using the one version that has not been tested.
2. Drop to Six Breaths a Minute as a Daily Practice
Once the five minutes is automatic, slow the rate rather than adding a technique. Around six breaths a minute for five to ten minutes is the pattern behind most of the research, and it needs nothing beyond counting. Do it at the same time each day rather than when you notice you need it.
One systematic review screened 1,842 abstracts and included 223 studies on voluntary slow breathing. It found increases in vagally mediated heart rate variability during a session, immediately after a single session, and after a multi-session programme [5].
If you have tried breathing before and given up because you could not tell whether it was working, a live readout solves that specific problem. Heart rate variability biofeedback is the same slow breathing with a chest strap or ring showing the number change. A meta-analysis of 24 studies covering 484 participants found a within-group effect size of 0.81 and a between-group effect size of 0.83 against control conditions, and the authors concluded that “HRV biofeedback training is associated with a large reduction in self-reported stress and anxiety” [6].
Watch-out: read the words self-reported carefully. These are large effects on how men say they feel, which is a genuine outcome, and it is not the same as a large effect on a blood marker. The device also turns a nightly score into one more thing to feel behind on.
3. Take an Eleven Minute Non-Sleep Deep Rest Session
Lie down, put headphones on, and follow a guided body-scan recording for about eleven minutes without trying to fall asleep. This is the practice sold as non-sleep deep rest, and it is the one method here with direct cortisol evidence rather than heart rate evidence. Use it in the afternoon rather than at bedtime.
A randomised controlled trial of 362 adults compared an 11 minute yoga nidra recording, a 30 minute version, a 10 minute music control and a waitlist over two months of daily practice [7]. In the 11 minute group, more regular practice was linked to significant decreases in total cortisol concentration, alongside steeper slopes in the cortisol awakening response [7].
The authors put the practical conclusion plainly, writing that “whether referred to as Yoga Nidra, non-sleep deep rest, or another form of meditation, the nervous system benefits from every moment of relaxation” [7].
Watch-out: the effect sizes in that trial were small, the shorter version generally outperformed the longer one, and it needs a quiet room, which makes it the hardest of the first three to run on a working day.

The first three change tonight. The last four change what tonight starts from.
4. Fix One Wake Time and Hold It Seven Days
Pick the wake time your worst weekday needs and use it every day, including Saturday. This is the highest-leverage change on the list and the one most men skip, because it asks for a decision rather than a practice. It costs no time at all.
Short sleep is not a neutral background condition, it actively raises the load the other methods are working against. In a controlled study of young men, evening cortisol concentrations were 37 and 45 percent higher after partial and total sleep deprivation than after a normal night [8].
The authors concluded that “even partial acute sleep loss delays the recovery of the HPA from early morning circadian stimulation and is thus likely to involve an alteration in negative glucocorticoid feedback regulation” [8]. In plain terms, a short night leaves the stress system switched on into the evening, which is exactly the state men are trying to breathe their way out of. Our full sleep guide for men sets out the order to fix the rest of it in.
Watch-out: the weekend lie-in is where this breaks, and a fixed wake time feels worse for the first week before it feels better.
5. Move the Last Drink Away From Bedtime
Finish drinking at least three hours before bed on the nights you drink, and keep two or three nights a week clear. This is not an argument for giving up alcohol. It is an argument about timing, because the cost lands in the second half of the night rather than at the point you fall asleep.
A systematic review and meta-analysis of 27 studies found that alcohol delays the onset of rapid eye movement sleep and reduces how much of it you get, with the disruption appearing at a low dose of roughly two standard drinks and worsening as the dose rises [9]. Reductions in the time taken to fall asleep only showed up at high doses [9].
That is the whole trap in one finding. The drink does the thing you notice, which is getting you off to sleep, and takes back the part you do not see.
Watch-out: because it genuinely helps you drop off, cutting it reads as a loss rather than a gain, and the benefit shows up two weeks later as easier mornings rather than tonight.
6. Put Three Steady Cardio Sessions in the Week
Add three sessions a week of steady cardio, at a pace you can hold a conversation at, for 30 to 45 minutes. This is a baseline method rather than a rescue method. It changes what your resting state is, and it is the slowest thing on this list to show up.
A meta-analysis of 16 randomised controlled trials covering 623 healthy adults found that exercise training improved RMSSD with an effect size of 0.84 and high-frequency power with an effect size of 0.89, both markers of vagal activity [10].
Men who already train hard often get this one backwards. More intensity is not the lever here, consistency at a moderate pace is, and a brutal session late at night takes back what it gave.
Watch-out: nothing lands in week one, so this is the method most likely to be abandoned before it pays. Finish hard sessions at least an hour before bed.
7. Bank Two Hours a Week Outside
Get 120 minutes a week in green or blue space, in any combination of visits. A walk at lunch, a Saturday morning out, a detour through a park on the way home. It is the least technical thing on the list and the easiest to attach to something you already do.
A study of 19,806 people in England found that spending at least 120 minutes a week in nature was associated with good health and wellbeing, and that it made no difference whether the 120 minutes came in one visit or several. Below that threshold, no such benefit was found [11].
Watch-out: that is an association from survey data rather than a controlled trial, so treat 120 minutes as a sensible target rather than a proven dose. It is also the first thing to go in a bad week, which is when it is worth most.
What Does Not Work as Well as Advertised
Cold water is the clearest example of a method whose reputation has outrun its data. A 2025 systematic review and meta-analysis of 11 studies covering 3,177 participants found no significant change in stress immediately after cold-water immersion, none at one hour, a significant reduction at 12 hours, and no significant change at 24 or 48 hours [12].
The authors were direct about the rest of it, concluding that “purported benefits remain unsubstantiated, with inconclusive evidence regarding CWI’s impact on immunity and mood, and concerning findings of short-term increases in inflammation” [12].
That does not make cold showers pointless. It means the honest claim is far smaller than the one being sold, and a cold plunge is not a substitute for the seven methods above.
Be equally sceptical of vagus nerve stimulation gadgets marketed for general calm, supplements sold as nervous system support, and any single session promising a reset.
The Mistakes That Waste the First Month
The most common one is starting four methods at once. Every method on this list is individually easy and the combination is not, so a man who adds breathing, a wake time, cardio and no alcohol on the same Monday is usually running none of them by the following Friday.
The second is treating the breathing as an emergency tool. The trial that produced the clearest effect ran it daily for 28 days [3], so using it only when you are already spiralling is testing an untested version.
The third is buying the device first. Biofeedback has the largest pooled effect in this list [6], and it shortens a learning curve you have not started yet.
The fourth is measuring nightly. Heart rate variability moves with sleep, alcohol, illness and training, so read it as a weekly trend and not as a score to beat.
How Long Does It Take to Feel Different?
Expect something within a single session and something durable inside a month. Slow breathing raises vagally mediated heart rate variability during the practice itself and immediately afterwards [5], so the first attempt gives you a signal. The clearest mood effect came from five minutes a day across 28 days [3], which is the realistic timeline for a change you would notice without measuring.
The baseline methods run slower. Exercise effects on vagal tone came from structured programmes over weeks [10], and a fixed wake time usually feels worse before it feels better.
The men who hold this are the ones who kept one method boring for a month, rather than the ones who tried five things in a week and concluded that none of it worked.
When This Stops Being a Habits Problem
No breathing practice fixes a medical cause. If exhaustion, low mood, a racing heart or persistent anxiety has run for weeks, or arrived without an obvious stressor, that is a GP appointment rather than a longer morning routine.
The same applies if you are drinking daily to switch off, if the tiredness is worsening despite decent sleep, or if you have thoughts of harming yourself. The NHS stress pages list the routes in, and none of them require you to have tried everything else first [13].
Getting checked does not cancel the habits work, it puts it in the right order. Our guide on how men manage stress covers the day-to-day side alongside this.
FAQ
Can you reset your nervous system in five minutes?
Partly, and only for now. Five minutes of slow breathing with a long exhale raises vagally mediated heart rate variability during the session and just after it [5], so you will feel a genuine change. It is turning the volume down rather than a reset, and the durable effect came from repeating it daily for 28 days [3].
What is the fastest way to calm down in the moment?
A long exhale. Breathe in through the nose, add a short second sip of air, then breathe out slowly through the mouth for roughly twice as long, and repeat. This exhale-focused pattern beat mindfulness meditation on mood and was the only practice to lower resting breathing rate across the day in a 28 day randomised trial [3].
Does non-sleep deep rest actually do anything?
Yes, modestly, and it is the method here with direct cortisol evidence. In a randomised trial of 362 adults, more regular practice of an 11 minute recording was linked to significant decreases in total cortisol and steeper cortisol awakening slopes [7]. The effect sizes were small, and the 11 minute version generally did better than the 30 minute one.
How do I know if any of this is working?
Use the pattern across a week rather than a number on a night. Easier mornings, a shorter fuse at 4pm, and getting to sleep without a drink are the signals that matter. If you track heart rate variability, read it as a weekly trend, because sleep, alcohol, illness and training all move it [6].
Do I need a device or an app to do this?
No. Six of the seven methods need nothing at all, and the only one that needs kit is heart rate variability biofeedback, which is an accelerator rather than a requirement. Buy it once the free methods are already running, not before.
Is cold water good for resetting your nervous system?
Less than advertised. The largest review to date found no significant stress reduction immediately, at one hour, at 24 hours or at 48 hours after cold-water immersion, with a significant reduction only at 12 hours [12]. It may be worth doing for other reasons, and it is not a replacement for breathing, sleep or exercise.
Can you overdo breathing practice?
For slow breathing at around six breaths a minute, five to ten minutes a day is the tested range and there is no reason to push beyond it. Fast or forceful breathing patterns are a different thing entirely and can leave you light-headed, so if you have a heart or respiratory condition, check with a GP first.
Which method should I start with if I only pick one?
Five minutes of long-exhale breathing. It has the clearest single trial behind it [3], it costs nothing, it needs no kit, and it gives you a same-session signal, which is what makes the slower methods easier to believe in and much easier to stick with.
Final Recommendation
Do method one, on its own, for a fortnight. Five minutes of long-exhale breathing at a fixed time daily, and change nothing else while you do it. That single method has the clearest trial behind it, it is free, and the same-session signal is what stops you quitting before the slower ones pay.
Then add one thing a week in this order: hold your wake time seven days, move the last drink, put three steady cardio sessions in, and clear 120 minutes outside. Leave the devices and the cold water until the free methods are running. If you are still exhausted after a month of that, stop optimising and book the appointment.

One change a week. Adding four at once is the reliable way to keep none of them.
Options for Men Who Want This to Stick
Most men do not have an information problem here. They have a week three problem, where five minutes of breathing quietly disappears on the first busy Tuesday and nothing formally replaces it. This work is unusually easy to drop because on the days you most need it, it feels like it is doing nothing.
The MenTools app runs this alongside mindset, fitness, nutrition and money in one challenge system, with daily actions, levels you choose, reminders timed to when a task should actually happen, streak and progress tracking, and an AI coach. Its job here is narrow and useful, which is holding the five minutes and the wake time in place through the fortnight before they start paying.
How you can do this today: set the breathing as a daily action at a fixed time, and add your wake time as a second action, so tomorrow is already decided before tonight goes wrong.
Wins on cost: one subscription covers the stress, sleep and training sides together rather than three separate apps and a chest strap.
Wins on time: the structure, levels and tracking already exist, so there is nothing to design before you start.
Wins on practicality: five minutes fits around shifts, travel and young children, which is exactly where a longer routine breaks first.
Watch-out: it is a behaviour and consistency tool, not a biofeedback device, a diagnosis or a treatment. If the section above applies to you, it supports the medical route rather than replacing it.
Recovery is what all seven of these methods are protecting, and it is hardest to hold together in the weeks a man is running on empty, so a one a day multivitamin may help cover the simple daily foundation underneath the behaviour work. For more built for men on this topic, see the MenTools stress hub. Keep method one boring for a month and the other six get considerably easier to start.
Last updated: 2026-09-23 v1.0
Disclaimer: This guide is for informational purposes only and does not constitute medical or psychological advice. Speak with a qualified professional before making significant changes if you have a medical or mental health condition.
References
- [1] Waxenbaum JA, Reddy V, Das JM. Anatomy, Autonomic Nervous System. StatPearls Publishing, updated 1 December 2025. Link
- [2] Health and Safety Executive. Work-related stress, depression or anxiety statistics in Great Britain, 2025. Published 20 November 2025. Link
- [3] Balban MY, Neri E, Kogon MM, Weed L, Nouriani B, Jo B, Holl G, Zeitzer JM, Spiegel D, Huberman AD. Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 2023;4(1):100895. Link
- [4] Stanford Medicine. Cyclic sighing can help breathe away anxiety. 2023. Link
- [5] Laborde S, Allen MS, Borges U, Dosseville F, Hosang TJ, Iskra M, Mosley E, Salvotti C, Spolverato L, Zammit N, Javelle F. Effects of voluntary slow breathing on heart rate and heart rate variability, a systematic review and a meta-analysis. Neuroscience and Biobehavioral Reviews, 2022;138:104711. Link
- [6] Goessl VC, Curtiss JE, Hofmann SG. The effect of heart rate variability biofeedback training on stress and anxiety, a meta-analysis. Psychological Medicine, 2017;47(15):2578-2586. Link
- [7] Moszeik EN, Rohleder N, Renner KH. The effects of an online yoga nidra meditation on subjective well-being and diurnal salivary cortisol, a randomised controlled trial. Stress and Health, 2025;41(3):e70049. Link
- [8] Leproult R, Copinschi G, Buxton O, Van Cauter E. Sleep loss results in an elevation of cortisol levels the next evening. Sleep, 1997;20(10):865-870. Link
- [9] Gardiner C, Weakley J, Burke LM, Roach GD, Sargent C, Maniar N, Huynh M, Miller DJ, Townshend A, Halson SL. The effect of alcohol on subsequent sleep in healthy adults, a systematic review and meta-analysis. Sleep Medicine Reviews, 2025;80:102030. Link
- [10] Amekran Y, El Hangouche AJ. Effects of exercise training on heart rate variability in healthy adults, a systematic review and meta-analysis of randomized controlled trials. Cureus, 2024;16(6):e62465. Link
- [11] White MP, Alcock I, Grellier J, Wheeler BW, Hartig T, Warber SL, Bone A, Depledge MH, Fleming LE. Spending at least 120 minutes a week in nature is associated with good health and wellbeing. Scientific Reports, 2019;9:7730. Link
- [12] Cain T, Brinsley J, Bennett H, Nelson M, Maher C, Singh B. Effects of cold-water immersion on health and wellbeing, a systematic review and meta-analysis. PLoS One, 2025;20(1):e0317615. Link
- [13] National Health Service. Stress. NHS. Link



