An Assessment of the effectiveness of “hardmewing”
In this thread I will be assessing and steelmanning the practice of hardmewing separately in both adults and mid to late teens
Chapter one: What is hardmewing?
Chapter 2: Mid to late teens
LLM results:
7 kgf = 68.6 N on 1 cm² → stress ≈ 0.69 MPa.
With E ≈ 10 MPa → strain ≈ 0.14 → temporary opening ≈ 1.4 mm during loading.
Strain < remodelling threshold (~0.25) → ≈ 0 mm permanent change after 1 year.
If contact area ≈ 0.5 cm² or E lower → strain > 0.25 → ≈ 0.5–1 mm yearly gain possible.
Take aways
Given that on any given suture the tongue will apply the same amount of force the 0.5-1mm number is most likely the accurate one.
Chapter 3: Remodelling in adults
Same 7 kg → F = 68.64655 N; on 1 cm² stress ≈ 0.686 MPa.
For a 25-yr-old assume stiffer sutures (E ≈ 20 MPa): strain ≈ 0.0343 → opening ≈ 0.34 mm while loaded (1 hour).
If effective area is 0.5 cm² (smaller contact): opening ≈ 0.69 mm while loaded.
Remodelling in a 25-yr-old is much slower/harder to trigger → ≈ 0 mm permanent gain after one year in both cases (strain < typical remodelling thresholds).
Conclusions
Hard mewing is not effective at causing significant amount of bone remodelling.
In this thread I will be assessing and steelmanning the practice of hardmewing separately in both adults and mid to late teens
Chapter one: What is hardmewing?
- Hardmewing is the practice of pressing the tongue against the roof of the mouth in-order to achieve growth through mechanointransduction
- Specifically through the expansion of sutures in the maxilla
- When these sutures are expanded they enable the collagen rich matrices to cause the formation of new bone material
Chapter 2: Mid to late teens
- I used an llm to run a model in which some one with a trained tongue (4-10kgs of force. And took the mean of of that force which is 7kgs) then asked it to show how much elastic remodelling this would cause over the course of one year. Here are the results.
- Here was the prompt I used: let's say that 7kgs of force is applied to the suture for 1 hour every day. the person in question is a 15 years old and does this for one year how much will the sutures gain
LLM results:
7 kgf = 68.6 N on 1 cm² → stress ≈ 0.69 MPa.
With E ≈ 10 MPa → strain ≈ 0.14 → temporary opening ≈ 1.4 mm during loading.
Strain < remodelling threshold (~0.25) → ≈ 0 mm permanent change after 1 year.
If contact area ≈ 0.5 cm² or E lower → strain > 0.25 → ≈ 0.5–1 mm yearly gain possible.
Take aways
Given that on any given suture the tongue will apply the same amount of force the 0.5-1mm number is most likely the accurate one.
Chapter 3: Remodelling in adults
- I used the same LLM model to recalculate the number but instead for adults
- Prompt used: model this again but with a 25 year old man
Same 7 kg → F = 68.64655 N; on 1 cm² stress ≈ 0.686 MPa.
For a 25-yr-old assume stiffer sutures (E ≈ 20 MPa): strain ≈ 0.0343 → opening ≈ 0.34 mm while loaded (1 hour).
If effective area is 0.5 cm² (smaller contact): opening ≈ 0.69 mm while loaded.
Remodelling in a 25-yr-old is much slower/harder to trigger → ≈ 0 mm permanent gain after one year in both cases (strain < typical remodelling thresholds).
Conclusions
Hard mewing is not effective at causing significant amount of bone remodelling.
