Your tongue is not just a taste and speech organ. It is a strong muscular structure that sits directly above the hyoid bone and interacts with almost every muscle in the floor of the mouth. Where the tongue rests changes what happens to the hyoid. This connection is the real, functional part of the mewing idea.
The overselling of mewing obscured a genuine mechanism. Here is what actually happens.
The tongue is directly connected to the hyoid
Several tongue muscles attach to the hyoid bone: the hyoglossus, the genioglossus, and (indirectly through fascia) the transverse and vertical muscles of the tongue itself. When these muscles are engaged, they either lift the hyoid or hold it in a specific position.
When the tongue rests fully on the palate with even pressure, the hyoid tends to sit higher. When the tongue lies flat on the floor of the mouth, the hyoid drops. This is not a matter of centimeters, but it is a real measurable shift in hyoid position that shows up on cephalometric imaging.
What proper tongue posture actually is
Not just the tip on the palate. Not just pressing hard. Proper tongue posture means:
- Full flat contact. The entire top surface of the tongue makes contact with the roof of the mouth. Not just the tip.
- Tip behind the front teeth. The tongue tip sits behind the upper incisors, not touching them.
- Lips gently sealed. Nasal breathing at rest.
- Teeth apart. Upper and lower teeth are not touching. Small gap between the arches.
- No conscious effort. The posture becomes automatic over weeks.
Most people default to a tongue posture where the tongue lies flat on the floor of the mouth. This is what mouth breathers do. Over years, this contributes to a lower hyoid resting position and softer jaw to neck angle.
Why mewing works partially
Correcting to proper tongue posture does two useful things:
- Holds the hyoid slightly higher through the passive support from tongue and floor of mouth position.
- Encourages nasal breathing, which reinforces the tongue-on-palate position through positive feedback.
These are real effects. People who fix their tongue posture typically see modest visible improvement in the jaw to neck angle within a few months. This is why mewing produced enough success stories to become viral.
Why mewing alone plateaus
Static tongue posture supports the hyoid passively. It does not load the suprahyoid muscles progressively. Muscles need loading to grow. A static hold is not loading.
Over time, tongue posture reaches its ceiling. The hyoid sits as high as passive support can put it. Any further improvement requires actual muscle hypertrophy in the suprahyoid group. That is what static mewing cannot provide.
See the mewing article for the full breakdown of why the practice peaked and declined.
The complete protocol
Tongue posture and muscle training are complementary, not competing:
- Tongue posture sets the resting position. Free, permanent once habitual, ceiling reached within months.
- Suprahyoid muscle training raises the ceiling by actually building the muscles. This is what HYOIDR is designed for through inspiratory resistance.
Do both together. The tongue posture keeps the muscles in the right resting length. The breathing resistance loads them progressively. Together, they produce results that mewing alone cannot.
Common tongue posture mistakes
- Only the tip. Just the tip of the tongue on the palate leaves the middle and back of the tongue disengaged. Not sufficient.
- Pushing forward against the teeth. This is tongue thrust. Bad for tooth alignment and does not lift the hyoid.
- Hard mewing. Maximum force pressing the tongue against the palate. No benefit over gentle full contact, risk of tooth movement and jaw joint stress.
- Breathing through mouth simultaneously. If the mouth is open, the tongue cannot maintain palate contact. Nasal breathing is required.
Frequently asked questions
Does tongue posture actually affect the hyoid?
Yes. Muscles connecting the tongue to the hyoid mean tongue position influences hyoid position. This is documented in cephalometric imaging.
Where should my tongue be at rest?
Full flat contact against the roof of the mouth, tip behind upper front teeth, lips sealed, breathing through the nose.
How long to make tongue posture automatic?
Six to twelve weeks of conscious daily practice. After that, it becomes the default without effort.
Does mouth taping help?
Yes for adults. Taping the mouth shut at night forces nasal breathing and maintains tongue-to-palate contact through the night. Widely used in myofunctional therapy.
Can bad tongue posture cause a weak jawline?
Contributes to it, especially over years. Chronic mouth breathing and tongue on the floor of the mouth lower hyoid position over time.
Related reading
- HYOIDR vs mewing — how progressive load complements static tongue posture.
- How to get a better jawline (complete guide) — where tongue posture fits in the broader picture.
- HYOIDR jawline trainer — the progressive loading that unblocks the mewing plateau.