How Does Mewing Work?

Before and after images highlighting the effectiveness of mewing, showing enhanced jaw definition and facial aesthetics.

Understanding the science of mewing, How does it work ?

Mewing, a topic that's sparked considerable interest in orthodontics and facial aesthetics, is under the spotlight in this article.
We're diving deep into its methodologies, potential benefits, and the scientific theories that underpin it, capturing the attention of both experts and the general public.

Understanding Mewing

How Does Mewing Work?

This practice, developed by the British orthodontist Dr. John Mew, revolves around properly positioning the tongue against the roof of the mouth.

Thought to positively influence facial structures, mewing could lead to enhanced facial symmetry, improved jaw alignment, and better overall facial aesthetics.


The Technique of Mewing

Mewing involves resting the full tongue - both the front and back parts - against the palate.

This continuous practice, ideally maintained throughout the day and even during sleep, also requires the lips to be closed and breathing through the nose.

This technique is believed to retrain the face and neck muscles, potentially causing long-term changes in facial structure.


The Science Behind MewingComparative side views illustrating how mewing affects the angle and function of the masseter muscles, with directional arrows.

The foundation of mewing lies in the belief that the facial skeleton, especially the maxilla, is adaptable and responsive to external forces like the tongue's pressure.

Dr. Mew's hypothesis posits that proper tongue posture can stimulate remodeling and growth in the facial bones, resulting in structural changes over time.


Role of the Tongue in Facial Development

An Impressive 12 Month Tongue Posture Transformation

The tongue is a powerful muscle significantly influencing facial development. When correctly positioned, it applies even pressure on the maxilla.

This pressure is theorized to encourage the maxilla's forward and upward growth, potentially enhancing facial symmetry and leading to a defined jawline and improved facial harmony.


Nasal Breathing in Mewing

How Mewing Widens The Palate And Face

Nasal breathing is a pivotal aspect of mewing. Mouth breathing might result in a lower, more backward tongue posture, potentially affecting facial development unfavorably. 

In contrast mewing and breathing through the nose exerts sideways and upper pressure to the maxilla in theory widening the palate and allowing more airflow and improved nasal breathing.


Long-Term Effects of Mewing

Before and after photos demonstrating significant facial changes from mewing, showing improved jawline and facial symmetry.

Mewing requires patience and consistency, as the changes it brings are gradual. The plasticity of facial bones diminishes with age, so starting mewing early can have a more substantial impact.

Adults may notice better facial symmetry and posture, improved jawline definition and a wider and more chiselled face.

Mewing may also improve your eye area; giving you hunter eyes!

Mewing is theorized to improve under eye support by pushing the maxilla up and foward. Giving you more hunter eyes; and less prey eyes.


Mewing in Children and Adolescents

Before and after images of youtuber Astrosky showing great results from mewing, with enhanced jaw definition and facial aesthetics.
 This is a famous youtuber; astrosky who achieved incredible results from mewing.


In younger individuals, whose bones are still growing and more pliable, mewing can be particularly impactful.

Proper tongue posture at a young age can guide the growth of facial bones, potentially leading to naturally aligned dental arches, improved facial structure, and healthier breathing habits.


Mewing's Impact on Adults

Age and Mewing Efficacity

While changes in adults are generally subtler and slower, mewing still offers benefits.

Adult practitioners often report better facial balance, reduced jaw pain, and improved posture. However, adults should temper their expectations, as significant skeletal changes are less likely than in younger individuals.

Learn more about the effectiveness of mewing after the age of 25.


Criticism and Controversy Surrounding Mewing

Mewing has its share of criticism, primarily due to limited scientific evidence of its efficacy in altering facial structure in adults.

Some orthodontic experts recommend caution, suggesting mewing not be viewed as an alternative to traditional orthodontic treatments, as more research is needed to understand its full effects.


Practical Steps to Start Mewing

Suction Hold Mewing

To begin mewing, one must consistently maintain the correct tongue position. This includes pressing the entire tongue against the roof of the mouth, keeping the lips closed, and ensuring nasal breathing.

Patience and persistence are key, as results can vary and may take time to manifest.

If you want to learn all that you need to know about mewing make sure to checkout our Mewing Mastery Course!


Mewing presents an intriguing approach to enhancing facial aesthetics and oral health. While its effectiveness, especially for significant structural changes in adults, is still debated, it offers a holistic, non-invasive option for those looking to improve their facial structure. As with any new practice, consulting healthcare

Back to blog