The science of your nervous system

Swap old health myths
for what actually works.

SmartSwap gives you breathwork tools, sleep science, and gut health protocols, grounded in research, built for real life. One swap at a time.

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Your vagus nerve responds in under 60 seconds.

The SmartSwap method

Replace what doesn't work
with what does.

Every week we debunk one health myth and replace it with the science-backed swap.

Gut Health
Old belief
Baking soda is just for baking or whitening teeth.
↓ SmartSwap ↓
Science says
Sodium bicarbonate is a powerful, fast-acting digestive buffer. It neutralizes excess hydrochloric acid on contact and can even improve athletic endurance by buffering lactic acid.
Try this: The next time you feel "heavy" or acidic after a meal, mix 1/2 teaspoon of food-grade baking soda into 100 ml of water. Drink it and wait for the release it’s the fastest way to reset your digestive pH.
Gut Health
Old belief
Lemon water is too acidic for people with reflux or digestive issues.
↓ SmartSwap ↓
Science says
Lemon water has an alkalizing effect once metabolized. For many, it can actually help balance stomach acid and stimulate bile production for better fat digestion.
Try this: Squeeze half a fresh lemon into 500 ml of room temperature water first thing in the morning. Drink it through a straw to protect your tooth enamel and observe how your digestion feels 30 minutes later.
Sleep
Old belief
You need exactly 8 hours of sleep
↓ SmartSwap ↓
Science says
Sleep timing matters more than duration — your circadian window determines sleep quality far more than total hours.
Try this: Pick a wake time and hold it every day for 2 weeks — including weekends. This single change has more impact than any sleep supplement.
Gut Health
Old belief
Probiotics are the fix for gut problems
↓ SmartSwap ↓
Science says
Prebiotics — soluble fiber — feed the bacteria you already have. Diversity beats supplementation for most people.
Try this: Add one new plant food per day this week. Lentils, oats, flaxseed, or any vegetable you don't normally eat. Variety is the signal.
Breathwork
Old belief
Deep breathing is just a relaxation trick
↓ SmartSwap ↓
Science says
Controlled breathing directly activates the vagus nerve — it's physiology, not mindset. Your nervous system responds whether you believe in it or not.
Try this: Try box breathing (4-4-4-4) for 3 minutes before a stressful event this week. Notice the physiological shift — not the belief, the feeling.
Sleep
Old belief
A nightcap helps you sleep better
↓ SmartSwap ↓
Science says
Alcohol suppresses REM sleep and fragments deep sleep cycles. You fall asleep faster but sleep worse — net negative every time.
Try this: If you drink in the evening, track your sleep the next morning for 5 nights. The pattern becomes undeniable.
See all SmartSwaps, free →
What's inside

Everything your nervous system needs.

Science-backed modules for breathwork, sleep, gut health, and consciousness research. Names, access tiers, and sections are loaded live from the database.

Practice
🫁

Breathwork Engine

Free

Animated pacer with 8 science-backed presets including Box Breathing, Coherent Breathing (5 BPM), 4-7-8, Holotropic Breathwork, and more. Auto-stops, plays a bell, logs your session.

The science
Extended exhale activates the vagus nerve via the PNS. Coherent breathing at 5 BPM maximises HRV. Box breathing lowers cortisol measurably in under 4 minutes.
Porges - Polyvagal Theory Lehrer et al. - HRV coherence Benson - Relaxation Response
🧘

Meditation Library

Free

Six guided categories - focus, sleep, anxiety relief, mindfulness, visualisation, and silent timer. 5 to 30 minutes. Ambient soundscapes, post-session reflection log, and a built-in tone generator for binaural beats, monaural beats, isochronic tones, and amplitude modulation, each with eight named presets.

The science
MBSR reduces amygdala reactivity. Visualisation activates the same neural pathways as physical execution. Body scan lowers inflammatory markers in 8 weeks. Binaural beats at 6 Hz (Theta) show consistent EEG entrainment within 8–12 minutes in Monroe Institute research.
Kabat-Zinn - MBSR Hölzel et al. (2011) - Amygdala Monroe Institute - Theta entrainment

Breath Hold

⭐ Premium

Stopwatch with personal best records, milestone system, and session history. Simple, but breath hold capacity is one of the most trainable physiological markers.

The science
Breath hold duration is a direct proxy for CO₂ tolerance and diaphragmatic strength. High tolerance correlates with lower anxiety baseline and better sleep onset.
McKeown - The Oxygen Advantage Buteyko Method research Bohr Effect - CO₂ tolerance
🏆

Leaderboard

Free

Streak rankings, breath hold records, trending techniques, and weekly community session data. See where you rank and what the community is practising.

The science
Social comparison and streak visibility increase practice consistency by up to 40% in habit-formation studies. Progress is motivating when it's visible.
Deci & Ryan - Self-Determination Theory Dweck - Growth Mindset Pink - Drive
🏆

Challenges

⭐ Premium

Structured daily programmes combining breathwork, sleep hygiene, and gut health. 7-Day Breathwork Foundations, 14-Day Sleep Reset, and 30-Day Nervous System Reset.

The science
Habit formation requires 18–254 days depending on complexity. Structured programmes remove daily decision-making, the largest barrier to consistency.
Lally et al. - Habit formation (2010) Clear - Atomic Habits Fogg - Tiny Habits
Track
😊

Mood & Stress

⭐ Premium

Daily four-dimension tracking: mood, stress, energy, and focus. 90-day trend charts. Surfaces correlations between practice days and wellbeing metrics over time.

The science
Self-reported affect measured consistently outperforms sporadic clinical assessment. The pattern across 90 days reveals what actually moves your baseline.
Fredrickson - Positive Emotions DASS-21 validated scale Diener - Subjective Wellbeing
🦠

Gut Health Tracker

⭐ Premium

60-second daily check-in: fibre intake, hydration, fermented food, digestion quality, and stress correlation. Weekly pattern analysis.

The science
90% of serotonin is produced in the gut. 70% of the immune system is gut-associated. Daily logging reveals which inputs most affect your gut-brain axis.
Sonnenburg - The Good Gut Cryan - The Psychobiotic Revolution Mayer - The Mind-Gut Connection
🔄

SmartSwap Feed

Free

Weekly myth-debunking. One old belief replaced with the science-backed mechanism, and one action to try. New entry every week.

The science
Behaviour change sticks when the mechanism is understood, not just the instruction. Knowing why box breathing works makes it 3× more likely to be repeated.
Kahneman - Thinking Fast and Slow Heath & Heath - Made to Stick Cialdini - Influence
🌙

Sleep Calculator

⭐ Premium

Input-based personalised assessment across five domains: timing, duration, quality, hygiene, and environment. Targeted swap recommendations per domain.

The science
Sleep timing relative to your circadian window matters more than duration. Consistent wake time is the highest-leverage single intervention, ahead of melatonin or blackout curtains.
Walker - Why We Sleep Czeisler - Circadian Biology Borbély - Two-process sleep model
🔗

Practitioner Share

⭐ Premium

Generates a secure read-only 90-day health summary link with charts: breathwork trends, mood scores, sleep domains, meditation categories. Share with your coach, therapist, or GP.

The science
Patient-held health data improves clinical outcomes. A practitioner who can see your 90-day trends treats you more accurately than one relying on a 10-minute consultation.
WHO - Patient-centred care Coulter - Engaging Patients Berwick - Patient as partner
📋

My Logs

Free

Every session and log entry across all modules in one place. Browse, filter by module, paginate, and delete individual entries. Breathwork, meditation, mood, sleep, breath hold, gut health, and holotropic sessions.

The science
Visibility into your own data, on your terms. Delete test entries, correct mistakes, or simply review your history without navigating to seven separate module pages.
📈

Habit Correlations

⭐ Premium

Surfaces patterns in your own data, not population averages. Shows findings like "your sleep score is 14 points higher after three consecutive practice days."

The science
Ecological momentary assessment, tracking within your own life across time, produces stronger predictive validity than cross-sectional population studies.
Bland & Altman - Correlation methods Smyth - Ecological momentary assessment Stone & Shiffman - EMA
✦ Experimental

These modules sit at the frontier of consciousness research. Admin-assigned to members who want to go further, beyond the physiological and into territory that serious researchers are only beginning to map.

Admin-assigned
🎵

Entrainment

⭐ Premium

Synchronised audio and/or live-generated tones, all participants hear the same frequencies at the exact same moment. Four tone types available: binaural beats (headphones), monaural beats, isochronic tones, and amplitude modulation. Breath pacer and post-session collective word cloud.

The science
Each tone type works through a different mechanism: binaural beats are a neural construction; monaural beats are acoustic interference; isochronic tones drive entrainment through sharp amplitude gating; AM uses smooth modulation that mirrors natural speech processing. All four can run simultaneously with an ambient audio track.
Monroe Institute - Hemi-Sync research Huang & Charyton - Binaural beats review (2008) Krauss et al. - Isochronic tones & EEG
Admin-assigned
🕯

Collective Room

⭐ Premium

Scheduled group sessions with a shared REG running during a defined window. Participants hold a shared intention in silence. Z-score and word log revealed collectively after the window closes.

The science
The Global Consciousness Project has run continuously since 1998. Significant deviations have been recorded during globally coherent events. Mechanism remains unknown.
Radin et al. - Group coherence studies McTaggart - The Intention Experiment Vedral - Decoding Reality
Admin-assigned
🔮

Remote Viewing

⭐ Premium

Structured ESP target practice with coordinate, binary-probe, and target-pool protocols. Feedback and scoring after each session. Progress tracked over time.

The science
SRI International ran controlled remote viewing trials for the US government from 1972–1995. Statistical analyses by Utts (1995) found effect sizes exceeding conventional sensory thresholds.
Targ & Puthoff - SRI research (1974) Jahn & Dunne - Margins of Reality Schwartz - The Secret Vaults of Time
Admin-assigned
🎲

Intention Field

⭐ Premium

A true random event generator runs server-side during a shared session window. Z-score results are revealed after each window, measuring statistical deviation from chance across participants.

The science
The PEAR Lab at Princeton ran REG experiments for 28 years. Aggregate effect sizes are small but statistically robust across millions of trials. Single sessions tell you nothing. Patterns over time become interesting.
Princeton PEAR Lab research Radin - Entangled Minds (2006) Nelson - Global Consciousness Project
The thread connecting everything

Your vagus nerve
runs the whole show.

Breathwork → gut health → sleep quality. These aren't three separate topics, they're one system, regulated by the vagus nerve. You access it through your breath, right now.

Extend your exhale. Cortisol drops. Gut motility improves. Sleep onset accelerates. SmartSwap is built around this one insight.

Start learning →
Brain
Stress regulation
Heart
HRV & calm
Gut
Motility & mood
Vagus nerve
Community

Real people, real practice.

See who's leading the community, and where you could rank.

32
total sessions
207
minutes practiced
9
active this month
1 🔥
top streak (days)
🔥 Streak leaders
🥇
S
Sarid
1 days
🥈
O
Oliver C.
1 days
⏱ Breath hold records
🥇
S
Sarid
03:02 m:s
🥈
M
Mark C.
02:37 m:s
🥉
T
Tav
01:03 m:s
📈 Trending techniques
1
Box Breathing
7 users · 16 sessions
2
Trader's Mindset ⭐
1 users · 2 sessions
3
Energising Breath
2 users · 2 sessions
Join the community →

What members are swapping.

★★★★★

"After one week of box breathing before bed, my sleep tracker showed 40 more minutes of deep sleep. The science finally clicked."

M
Mia R.
Designer, Singapore
★★★★★

"The gut tracker made me realise I was eating only 8g of fiber a day. Within 2 weeks my digestion completely changed."

J
James K.
Entrepreneur
★★★★★

"What SmartSwap taught me in the first newsletter, about circadian timing, did more than two years of sleep hygiene tips ever did."

P
Priya S.
Product Manager
Simple pricing

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  • 🫁 Breathwork Engine
  • 🧘 Meditation Library
  • 🔄 SmartSwap Feed
  • 🏆 Leaderboard
  • 📋 My Logs
  • ⏱ Breath Hold
  • 😊 Mood & Stress
  • 🦠 Gut Health Tracker
  • 🌙 Sleep Calculator
  • 🏆 Challenges
  • 🔗 Practitioner Share
  • 📈 Habit Correlations
Get started free
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$19 /mo

Billed monthly

  • Unlocks premium modules
  • ⏱ Breath Hold
  • 😊 Mood & Stress
  • 🦠 Gut Health Tracker
  • 🌙 Sleep Calculator
  • 🏆 Challenges
  • 🔗 Practitioner Share
  • 📈 Habit Correlations
  • Plus everything free
  • 🫁 Breathwork Engine
  • 🧘 Meditation Library
  • 🔄 SmartSwap Feed
  • 🏆 Leaderboard
  • 📋 My Logs
Start 7-day free trial

All plans include a 7-day free trial. No charge until day 8. Cancel any time. Prices in USD.

Common questions.

Do I need experience with breathwork or meditation?
Not at all. SmartSwap is designed for curious beginners. Every technique includes a plain-English explanation. Start with box breathing, 3 minutes and you'll feel the difference immediately.
Is the health content medically reviewed?
SmartSwap is for educational purposes only, not medical advice. We cite peer-reviewed research and present it clearly, but always consult your doctor for personal health decisions.
What happens after my free trial?
After 7 days you're charged your chosen plan rate. You'll get a reminder on day 5. Cancel any time before day 8 and you won't be charged. Cancellation takes 30 seconds.
Can I use SmartSwap on my phone?
Yes, the web app is fully responsive and works on any device. No download needed. Add it to your home screen for the best experience.
How is SmartSwap different from Calm or Headspace?
Those are great apps, but SmartSwap is built around swapping outdated beliefs, not just guided relaxation. We focus on breathwork as a physiological tool (vagus nerve, HRV, gut-brain axis).

Your nervous system is waiting.

One swap a week. Five minutes a day. A fundamentally different relationship with your health.

Start your free 7-day trial

No credit card required · Cancel any time · $19/mo after trial