I have always thought of mewing as something that a kitten does. However, this unique term is now being paraded on social media platforms and has very little to do with cat articulations.
Scrolling through beauty items on social media, the term immediately caught my attention. I wondered how they had possibly connected the sweet and familiar sound of kittens with the world of beauty and aesthetics.
It was on closer inspection that I realised I had it all wrong. The ‘mewing’ of 2026 has less to do with cats, and more to do with changing the position of your tongue, with the hope of creating a more defined face.
The technique involves positioning the tongue against the roof of the mouth, with proponents claiming that maintaining this posture over time can create a stronger jawline, improve facial symmetry and even influence the development of the jaw and cheekbones. On TikTok, YouTube and Instagram, before-and-after photographs can make the claims look compelling.
Still, to me, holding your tongue in another position for so long sounds like a lot of effort!
I wanted to know where the idea to ‘mew’ came from in the first place, and why it has become such a phenomenon? Then, is there any scientific evidence backing it up?
What Exactly Is Mewing?
Mewing refers to a particular approach to tongue and oral posture in which the tongue is held against the roof of the mouth rather than resting low in the mouth.
Online versions of the technique generally encourage the tongue to sit against the palate, with the lips closed and breathing through the nose. Some practitioners also emphasise keeping the teeth lightly together or close together.
The idea behind it is that the tongue is a powerful muscle and that its resting position can influence the surrounding teeth, jaw and facial structures.
This premise has a kernel of anatomical plausibility. Tongue posture and oral muscle function can be relevant to dental and facial development, particularly during childhood. However, this is very different from saying that an adolescent or adult can deliberately reposition their tongue and reshape their face.
The next big question is, where did mewing originate?
Mewing is named after British orthodontist Dr. John Mew, who developed ideas around what became known as orthotropics during the 1970s.
Dr. Mew argued that the posture and function of the tongue and other oral muscles could influence facial development. His ideas were subsequently developed and promoted by his son, orthodontist Dr. Mike Mew.
The father, Dr. John Mew published a paper on tongue posture in the British Journal of Orthodontics in 1981. In it, he proposed that bone could respond to posture over time and discussed the potential relationship between tongue posture and malocclusion.
The theory existed for decades without becoming a mainstream beauty phenomenon. Then social media changed everything.
Social media transformed the technique from a relatively obscure orthodontic theory into an online facial-optimisation trend.
Experts explain that mewing is possibly so popular because it fits perfectly into the logic of social media. It promises a visible result without surgery, injections or expensive products. It can be demonstrated in a few seconds. It also lends itself perfectly to before-and-after content.
Videos commonly show someone turning sideways to reveal a supposedly improved jawline, accompanied by instructions to ‘mew’ consistently.
The visual transformation is persuasive, even when there may be other explanations for the difference. Age, weight loss, facial hair, lighting, camera angle, posture and simple changes in expression can all dramatically alter the appearance of a jawline.
There is also a psychological appeal. Instead of accepting facial structure as largely determined by genetics and development, mewing suggests that attractiveness can be trained.
The golden question is: Does it actually work?
According to mainstream orthodontic organisations, not in the way social media suggests. The American Association of Orthodontists (AAO) says there is currently no scientific evidence that mewing can reshape the jawline or improve facial bone structure.
The tongue, lips and other oral muscles interact with the teeth and surrounding structures, and abnormal oral habits can be relevant to orthodontic problems. There is also a field known as myofunctional therapy, which can involve exercises designed to address specific oral-muscle functions.
But these clinical approaches should not be confused with the social-media claim that anyone can sharpen their jawline simply by pressing their tongue against the roof of their mouth.
Experts have warned that excessive or uneven tongue pressure may contribute to unwanted tooth movement or bite problems. Inappropriate mewing can also affect chewing and speech and potentially lead to more complicated orthodontic treatment.
There is a difference between having healthy oral posture and deliberately applying sustained pressure to the teeth and palate because you believe it will remodel your face.
The latter is essentially attempting to perform orthodontics on yourself.
Also, unlike a professional orthodontic appliance, the pressure is not being measured, monitored or adjusted according to the individual’s anatomy.
For a young person concerned about jaw development, bite, mouth breathing, overcrowding or facial growth, the appropriate route is an assessment by an orthodontist or other suitably qualified healthcare professional.
So is mewing worth anything at all?
Mewing has taken a legitimate area of anatomy; that is, the relationship between tongue posture, oral function and facial development; and turned it into a much bigger cosmetic promise than the evidence currently supports.
