Mewing

Tongue posture technique of resting the tongue against the roof of the mouth to potentially improve facial structure, jawline definition, and breathing

9 min read
C Evidence
Time to Benefit Months to years (structural changes); days to weeks (breathing/posture awareness)
Cost Free (self-practice); $200-500 (myofunctional therapy); $5,000-15,000 (orthodontic devices)

Bottom Line

Mewing is the practice of maintaining proper tongue posture - resting the entire tongue against the palate with lips closed and teeth lightly together. Named after Dr. John Mew and popularized by his son Dr. Mike Mew, it's become a viral phenomenon with claims of dramatic facial restructuring.

What the evidence shows:

  • Tongue posture does influence craniofacial development in children
  • Mouth breathing is associated with altered facial development
  • Adult bone remodeling is limited compared to children
  • No RCTs exist on "mewing" specifically
  • Dramatic adult transformations are likely exaggerated or due to other factors

The realistic take:

  • Proper tongue posture is genuinely good for breathing and oral health
  • Children may see more significant facial development effects
  • Adults may see modest improvements, mainly soft tissue
  • Dramatic jawline changes in adults are unlikely from mewing alone
  • Before/after photos online are often misleading (lighting, angles, weight loss, puberty)

C-level evidence. Mewing probably won't transform your face as an adult, but proper tongue posture is associated with better breathing, reduced snoring, and dental health. It's free and low-risk, so worth practicing for general health benefits rather than aesthetic transformation.

Science

The Orthotropics Theory:

Dr. John Mew developed "orthotropics," proposing that facial structure is largely determined by oral posture during development, not just genetics.

Core Principles:

FactorImpact on Face
Tongue posturePalate width, midface development
Lip sealJaw position, facial length
Breathing modeVertical vs horizontal growth
Chewing forcesJaw strength, width

Proper Tongue Posture:

  • Entire tongue resting on palate (not just tip)
  • Back third of tongue engaged
  • Creates upward and forward pressure
  • Promotes horizontal facial growth

Mouth Breathing Effects:

  • Tongue drops to floor of mouth
  • Face grows longer and narrower
  • "Long face syndrome" or "adenoid facies"
  • Recessed chin and jaw
  • Narrower palate

Why It Matters:

  • Tongue applies ~500g of force to palate
  • Over time, this shapes bone (Wolff's Law)
  • Children's bones are more malleable
  • Adult bones can still remodel, but slowly

Wolff's Law:

Bone adapts to the loads placed upon it. The tongue's constant pressure theoretically shapes the maxilla and influences overall facial development.

The Adult Question:

  • Sutures fuse around age 25
  • Adult bone remodeling is slower
  • Soft tissue changes are possible
  • Dramatic skeletal changes less likely

Airway Connection:

Supporting Studies

7 peer-reviewed studies

View all studies & compare research →

Practical Protocol

The Mewing Technique:

Basic Position:

  1. Close your mouth with lips gently sealed
  2. Place the TIP of your tongue behind upper front teeth (not touching)
  3. Press the MIDDLE of your tongue to the palate
  4. Engage the BACK of your tongue against the soft palate
  5. Keep teeth lightly touching or slightly apart
  6. Breathe through your nose

The "Suction Hold":

  1. Say "sing" and notice where tongue hits palate on "ng"
  2. Keep tongue in that position
  3. Create slight suction to hold tongue up
  4. This engages the posterior third

Common Mistakes:

MistakeCorrection
Only tip touchesEngage entire tongue
Pressing too hardGentle, sustained pressure
Forgetting back thirdFocus on "ng" position
Clenching teethLight touch or slight gap
Mouth breathingCommit to nasal breathing

Progression:

Week 1-2: Awareness

  • Check tongue position frequently
  • Set hourly reminders
  • Practice for 5-10 minutes consciously

Week 3-4: Building Habit

  • Increase conscious practice
  • Focus on maintaining during activities
  • Practice during sleep (mouth tape may help)

Month 2+: Automation

  • Should become more automatic
  • Continue checking periodically
  • May take 6-12 months for true habit

Advanced: Hard Mewing

  • Pressing tongue more firmly
  • Controversial - may cause TMJ issues
  • Not recommended for beginners

Complementary Practices:

  • Nasal Breathing - Essential for mewing
  • Mouth Taping - Maintains position during sleep
  • Chewing hard foods or mastic gum - Jaw development
  • Good head/neck posture - Affects tongue position

Risks & Side Effects

Generally Low Risk:

Mewing is essentially just proper tongue posture. Risks are minimal when done correctly.

Potential Issues:

RiskLikelihoodPrevention
TMJ discomfortLow-ModerateDon't clench, see dentist
Muscle fatigueCommon initiallyGradual progression
SorenessCommon initiallyDon't force it
Orthodontic interferencePossibleConsult orthodontist

Hard Mewing Risks:

  • TMJ dysfunction
  • Jaw pain
  • Headaches
  • Tooth movement (uncontrolled)
  • Not recommended

Who Should Be Cautious:

  • Those with TMJ disorders
  • People in active orthodontic treatment
  • Those with jaw pain
  • Anyone with dental work concerns

When to Stop:

  • Persistent jaw pain
  • Clicking or popping in jaw
  • Headaches
  • Tooth sensitivity

Realistic Expectations:

The main risk is psychological - expecting dramatic adult facial changes and being disappointed. Set realistic expectations for modest benefits.

Risk Level: LOW. Proper tongue posture is natural and generally beneficial. Avoid "hard mewing" and excessive force.

Who It's For

May Benefit:

Children/Adolescents (Best Candidates):

  • Growing children with developing faces
  • Kids with mouth breathing habits
  • Those with narrow palates
  • Children with orthodontic concerns
  • Ages 4-18 (bones still developing)

Adults:

  • Those with poor tongue posture habits
  • Mouth breathers wanting to switch to nasal
  • People interested in facial aesthetics (modest expectations)
  • Those with mild sleep-disordered breathing
  • Anyone wanting better oral posture

Related Conditions:

  • Mouth breathing
  • Snoring
  • Mild sleep apnea
  • Forward head posture
  • "Tongue thrust" swallowing

Probably Won't Help Much:

  • Adults expecting dramatic bone changes
  • Those with severe skeletal issues (need orthodontics/surgery)
  • People with established jaw deformities

Consider Myofunctional Therapy If:

  • Difficulty maintaining tongue posture
  • Tongue tie suspected
  • Swallowing dysfunction
  • Want professional guidance

How to Track Results

What to Track:

Photos (Most Important):

  • Same lighting, angle, distance
  • Profile view (most relevant)
  • Front view
  • Take monthly
  • Don't expect visible changes for 6-12+ months

Photo Protocol:

AspectStandardize
LightingSame natural light
AngleProfile at 90 degrees
DistanceSame spot each time
ExpressionNeutral, relaxed
TimeSame time of day

Subjective Tracking:

  • Ease of nasal breathing
  • Tongue posture awareness (1-10)
  • Any jaw discomfort
  • Sleep quality
  • Snoring (if applicable)

Habit Tracking:

  • Times per day you catch mouth open
  • Percentage of day with proper posture
  • Sleep position maintenance

Realistic Timeline:

  • Week 1-4: Building awareness
  • Month 2-6: Habit formation
  • Month 6-12: Soft tissue changes possible
  • Year 1+: Any bone changes (modest in adults)

What NOT to Expect:

  • Dramatic changes in weeks
  • Visible bone restructuring as adult
  • Instagram transformation results

Top Products

Tongue Posture Aids:

  • Mewing.coach - App for reminders and tracking
  • Various reminder apps

Complementary Products:

  • Mouth Tape - Hostage Tape, Somnifix, 3M Micropore
  • Mastic Gum - Amazon options
  • Jawzrsize - Jaw exercise device (controversial)
  • Chisell - Jaw exercise device

Finding Practitioners:

  • Orthotropics practitioners - orthotropics.com
  • Myofunctional therapists - aomtinfo.org
  • Airway-focused dentists - Search "airway dentist" locally

Educational Resources:

  • Orthotropics YouTube channel (Dr. Mike Mew)
  • The Mewing Community subreddit (r/mewing)
  • Note: Online before/afters are often misleading

Cost Breakdown

Self-Practice:

  • Free
  • Just requires awareness and consistency

Myofunctional Therapy:

  • Initial evaluation: $100-200
  • Treatment program: $500-2,000
  • Helpful for tongue tie, swallowing issues

Related Interventions:

ItemCost
Mouth tape$10-20/month
Mastic gum$15-30/month
Chewing device (Jawzrsize)$30-50

Orthodontic Devices (If Needed):

  • Palate expanders: $2,000-5,000
  • Myobrace: $3,000-8,000
  • DNA appliance: $5,000-10,000
  • ALF appliance: $3,000-7,000

Professional Help:

  • Orthotropic dentist: Varies
  • Myofunctional therapist: $500-2,000

Value Assessment:

Mewing itself is free. If serious about facial development, professional evaluation may be worthwhile, especially for children.

Podcasts

Discussed in Podcasts

Mewing basics: suction your entire tongue against the roof of your mouth all day

Suction your entire tongue tip-to-base against the palate during all activities. The book Jaws shows dramatic facial changes from mewing.

Who to Follow

Key Figures:

  • Dr. John Mew - British orthodontist, founder of orthotropics
  • Dr. Mike Mew - Son, popularized mewing on YouTube
  • Dr. Kevin Boyd - Pediatric dentist, facial development focus
  • Dr. Weston A. Price - Historical research on traditional diets and facial development

Online Presence:

  • Orthotropics YouTube (700k+ subscribers)
  • Reddit r/mewing (200k+ members)
  • TikTok mewing community (billions of views)
  • Looksmaxxing communities

Controversy:

  • Dr. Mike Mew was removed from British Orthodontic Society
  • Mainstream orthodontics is skeptical
  • Debate continues about adult bone remodeling
  • Before/after photos often problematic

Celebrity Mentions:

  • Various fitness influencers discuss mewing
  • Part of broader "looksmaxxing" culture
  • Viral on TikTok and YouTube

What People Say

Why It's Popular:

  • Free and accessible
  • Viral before/after photos (often misleading)
  • Appeals to facial aesthetics desire
  • Has basis in actual developmental biology
  • Low effort once habituated

Common Claims:

  • "Changed my jawline"
  • "Better breathing"
  • "Reduced snoring"
  • "Face looks more defined"

The Reality:

Many dramatic before/afters are confounded by: - Weight loss (reduces face fat) - Puberty (ongoing development) - Lighting and angles - Photo manipulation - Placebo/confirmation bias

What's More Likely True:

  • Improved breathing habits
  • Better oral posture awareness
  • Modest soft tissue changes
  • Psychological benefits from taking action

Community:

  • Large online following
  • Mix of reasonable practitioners and extreme claims
  • Be skeptical of dramatic transformation claims

Synergies & Conflicts

Breathing Stack:

Facial Development Stack:

  • Mewing (tongue posture)
  • Hard food chewing / mastic gum
  • Good head/neck posture
  • Myofunctional exercises

Sleep Quality Stack:

Posture Stack:

  • Mewing (oral posture)
  • Chin tucks (neck posture)
  • Shoulder blade squeezes
  • Overall postural awareness

For Children:

  • Mewing training
  • Hard food diet
  • Nasal breathing emphasis
  • Early orthodontic evaluation
  • Myofunctional therapy if needed

Last updated: 2026-01-12