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Mewing

Mewing.

The technique in 30 seconds

Mewing was popularized by British orthodontist Dr. Mike Mew. The protocol:

  1. Tongue posture — entire tongue (tip + back) flat against the roof of the mouth, not just the tip
  2. Lip seal — lips closed, breathing through the nose
  3. Teeth posture — molars lightly touching, no clenching
  4. Held 24/7 — including while sleeping, eventually unconsciously

That’s it. No products to buy.

What mewing claims to do

Long-term claims (1–5+ years of consistent practice):

  • Wider, more forward-grown maxilla (upper jaw)
  • More defined gonial angle (jawline corner)
  • Improved nasal breathing
  • Reduced double chin appearance
  • Better facial proportions over time

Short-term effects (days to months):

  • Tighter jawline appearance
  • Reduced under-chin softness
  • Better posture (head sits more forward)
  • Cleaner side profile in photos

What the evidence actually says

Independent peer-reviewed studies on adult mewing are limited. What we have:

  • Childhood orthotropics (the parent discipline) has decades of evidence for craniofacial development with proper tongue posture during growth.
  • Adult bone remodeling is slow but real — small angular changes are biologically possible over years.
  • Postural and muscular changes are immediate and measurable.

What it almost certainly won’t do for adults: dramatically widen your face, eliminate a recessed chin, or replace orthognathic surgery for severe maxillary issues.

How Fazly tracks mewing progress

Take a baseline scan, mew consistently, re-scan every 4–8 weeks. Watch:

  • Jawline sub-score — biggest change zone
  • Side profile angle (in your detail breakdown)
  • Submental fullness (under chin softness)

Most users see a 3–6 point Fazly sub-score lift in the first 90 days. After that, gains slow but compound over years.

Common mewing mistakes

  1. Pressing only the tongue tip (use the whole tongue)
  2. Mouth-breathing while “mewing” (defeats the purpose)
  3. Clenching teeth (creates tension headaches, no benefit)
  4. Expecting overnight bone changes
  5. Forgetting that diet and sleep affect facial fullness more than posture in the short term

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