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Effect of chewing hard material on enhancing cognitive function

frontiersin.org

41–50 of 68 posts

Re: Effect of chewing hard material on enhancing cognitive function

#42
post #24

As someone who's spouse is currently in their 3rd year of rehabilitation after TMJ (tempo-mandibular joint) reconstruction, let me warn you against any kind of chewing activity that involves either high direct pressures (ice, hard things that "crack", anything that resists biting down very much), or strong lateral forces (bagels, pizza crust). We're about $60K in to her treatment. She's had the meniscus of the joints…

I used to buy a pack of cashew nuts every day during lunchtime. One day I realized my jaw has started making a clicking sound and the muscle feels kinda loose. That was ten years ago; it's gotten somewhat better and I also learned to avoid that particular motion but never recovered.

I don't understand, what did the cashews do? They're pretty soft, no?

Re: Effect of chewing hard material on enhancing cognitive function

#43

> However, the mechanisms linking cerebral blood flow increase to metabolic changes in the brain affecting cognition remain unclear. Stanford research published after that article provides that answer: Face shape. It's not just better cognitive performance but the alternative contributes to face shape commonly perceived as "not beautiful". The Stanford research, and no I don't have a link, concludes there are two act…

I don't get why mouth-breathing drastically lowers oxygen intake.

Re: Effect of chewing hard material on enhancing cognitive function

#45

Huh, are there speciality chewing sticks purpose made for this?

'Miswak' sticks are popular in the Middle East/Northern Africa. Raw mastic gum seems to be gaining popularity in the US. Neither is popular for the explicit purpose of cognitive enhancement, though.

>Miswak' sticks are popular in the Middle East/Northern Africa.

that is for cleaning the teeth, and I read somewhere that there is some evident that it is somewhat effective in reducing tooth decay.

https://en.m.wikipedia.org/wiki/Miswak

in India there was or is a toothpaste brand called Meswak, which includes miswak as an ingredient.

nice wordplay in your username :)

Re: Effect of chewing hard material on enhancing cognitive function

#46
post #43

> However, the mechanisms linking cerebral blood flow increase to metabolic changes in the brain affecting cognition remain unclear. Stanford research published after that article provides that answer: Face shape. It's not just better cognitive performance but the alternative contributes to face shape commonly perceived as "not beautiful". The Stanford research, and no I don't have a link, concludes there are two act…

I don't get why mouth-breathing drastically lowers oxygen intake.

As I understand it, when exhaling, the nose create backpressure that facilitates gas transfer in the lungs.

However, my nose is decorative, and I must breath though my mouth. No repercussions as I can mountain climb.

Re: Effect of chewing hard material on enhancing cognitive function

#47
post #43

> However, the mechanisms linking cerebral blood flow increase to metabolic changes in the brain affecting cognition remain unclear. Stanford research published after that article provides that answer: Face shape. It's not just better cognitive performance but the alternative contributes to face shape commonly perceived as "not beautiful". The Stanford research, and no I don't have a link, concludes there are two act…

I don't get why mouth-breathing drastically lowers oxygen intake.

Makes no sense - I'd expect the opposite, given how easier it is to breathe in and out larger volume of air through the mouth than through the nose.

Re: Effect of chewing hard material on enhancing cognitive function

#49

Huh, are there speciality chewing sticks purpose made for this?

I know that there are hard rubber like material that were made to strengthen jaw muscles. Licorice sticks might be used too.

Doesn't licorice lower intelligence?

Re: Effect of chewing hard material on enhancing cognitive function

#50
post #43

Earlier quoted context omitted.

I don't get why mouth-breathing drastically lowers oxygen intake.

Makes no sense - I'd expect the opposite, given how easier it is to breathe in and out larger volume of air through the mouth than through the nose.

Why? Internally to the face the nasal cavity is massive and largely not restricted, especially compared to the throat (pharynx) which is restricted and can accept only small volumes of air at a time. Because of that the body must work substantially harder to permit large air volumes through mouth breathing.

Just search google images for "pharynx". The visual difference in size is striking.

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