Mewing Before and After

People search “mewing before and after” because the photos can look dramatic: sharper jawline, better profile, “forward” chin, less double-chin. The honest truth is that most “after” results are explained by posture, body-fat changes, and photography tricks, not permanent jaw reshaping. Major orthodontics say there’s no solid scientific evidence that mewing can reliably change adult facial bone structure.

Important note about the images below: They are examples of the type of “before/after” photos commonly shared online, not medically verified transformations. Online comparisons can be misleading without controlled conditions.

What is mewing?

Mewing is a viral name for oral posture training: resting your tongue on the roof of your mouth (palate), lips closed, and breathing through your nose. It’s associated with “orthotropics,” popularized by John Mew and Mike Mew.

A simple way to think about it:

• Rest position, not a hard press.
• Tongue up, lips together, teeth lightly touching or slightly apart (comfort-based).
• Nose breathing when possible.

Learn more: what is mewing >

Does mewing actually work for “jawline transformation”?

What mainstream orthodontic groups say

• The American Association of Orthodontists (AAO) and the British Orthodontic Society (BOS) have publicly warned that there’s no scientific evidence mewing can reshape the face/jaw the way social media claims, and that risks/harms are possible if people self-treat instead of seeing professionals.

What may change (especially in photos)

• Your posture (head/neck position) and tongue position can change how your jawline looks immediately, like “before” vs “after” in the mirror.
• Body fat reduction often creates a real jawline change (because the neck and submental area lean out).
• Better nasal breathing / less mouth-breathing habits can improve comfort and sometimes reduce the “open mouth” look.

What’s unlikely

• Permanent bone changes in adults from tongue posture alone (the big “glow up” claims) are not supported by credible evidence.

Why “mewing before and after” photos look so extreme

Here are the most common reasons the “after” looks wildly better:

1) Neck + head posture (the #1 illusion)

If you:

• pull your head slightly back (“long neck”),
• lift the chin a touch,
• keep the tongue up,
  you can instantly tighten the area under the jaw in photos.

Why it happens: the soft tissue under the jaw stretches differently and shadows change.

2) Tongue placement changes the under-chin shape

Tongue up can reduce the appearance of “softness” under the jaw in the moment.

Why it happens: the tongue and floor-of-mouth muscles influence the contour seen under the chin.

3) Camera angle + focal length

A close selfie with a wide-angle lens can distort the face:

• “Before” shot: lower angle + close camera = bigger nose/softer jaw
• “After” shot: higher angle + farther camera = sharper jaw

4) Lighting and shadows (jawline contouring without makeup)

Hard side lighting creates a crisp jaw shadow. Flat lighting hides it.

5) Weight loss (a real change, wrongly credited to mewing)

Many “after” photos coincide with fat loss, gym, or just aging into a leaner face.

6) Time and growth (teens vs adults)

In teens, the face is still developing. Changes over a year may be normal growth, orthodontics, or lifestyle, not necessarily tongue posture.

f you want an honest “before and after,” do this photo test

Use this to avoid fooling yourself (or your audience):

1. Same time of day (morning vs evening puffiness matters)
2. Same camera + same distance (use 2×/telephoto if possible)
3. Same lighting (stand in the same spot)
4. Neutral expression (no jaw clench)
5. Same posture:
   • one set “relaxed natural”
   • one set “best posture”
6. Take front + side profile both times.

If the improvement only appears in the “best posture” set, that’s not a permanent structural change—it’s posture/positioning.

So… should you mew?

If you interpret “mewing” as healthy resting posture + nasal breathing (when medically appropriate), it’s usually reasonable. But if you’re doing forceful pushing hoping to remodel your jaw, be cautious.

Potential risks / downsides

Orthodontic experts warn that unsupervised attempts to change bite/jaw can backfire or delay proper care.

If you have:

• jaw pain / clicking (TMJ symptoms),
• bite issues,
• sleep breathing issues,
• crooked teeth crowding,

…talk to an orthodontist or ENT instead of relying on internet techniques.

FAQ: Mewing before and after

How long does mewing take to see results?
Most “fast results” are instant posture/angle effects. Permanent structural claims aren’t supported by strong evidence.

Can mewing fix a recessed chin?
Photos may look better with posture. True skeletal issues typically require professional evaluation.

Does mewing work better for teenagers?
Faces change naturally during growth. Separating growth/orthodontics from “mewing” is hard, which is why online before/afters can be misleading.

Bottom line

“Mewing before and after” transformations are mostly:

• posture + tongue position,
• lighting/camera differences,
• weight loss or natural growth,

not guaranteed jaw remodeling. If your goal is health, focus on good posture, nasal breathing (if possible), and professional care for bite/airway issues.

Continue reading: How Hormones Impact Your Ability to Lose Weight, Vibration Plate Benefits, Epithelial Cell Abnormality.