My jaws never get fatigued, except now. I just ate 2 lbs of meat and my jaws are totaly fatigued.
May this be a sort of signalling that I've had enough food? Should I continue eating the food merely unchewed? I can still manage to get more food in my belly, although I feel quite full.
Dr. Michael Mew talked about this phenomenon at the AHS in his session. In short, the lack of significant masticatory effort in modern Western people has lead to weakened jaw structures, and ultimately deformed facial bones and malocclusion due to improper growth of the facial cranial complex.
This can be said to have come about due to the highly processed nature of Western foods, the prevalence of cooking, reliance on liquid foods, and the more tender quality of non-game meats.
I read the OP as a perfectly legitimate question. I really have no idea why everybody piled on you so hard, and it's especially confusing that Kaz said you might have a "medical issue" or something. Oh noes!!1 Not a MEDICAL ISSUE!!!11
If your jaw is tired, I definitely wouldn't call THAT a signal to stop eating, though perhaps it would CORRELATE with such signals. Instead, it's your hunger level, how full you are, etc that should tell you whether to keep eating.
What it means for your jaw to be tired is simply that it's not adjusted to the level of chewing that you're doing. It's like any other muscle or whatever: if you do more than usual, it gets tired, it gets sore the next day, etc.
Most people don't chew nearly enough, and if they go through a whole meal chewing as much as they should, they would of course "feel the burn" in the muscles moving their jaw. So how to remedy this? Just chew more and your jaw will get stronger!
In fact, not chewing enough seems to be a common modern world problem. You could imagine that back in the day, the ancients probably really savored their food and tried to extract as much flavor as possible from each piece of food. This ensued that they chewed enough, plus it probably aligned their hunger signal with their fullness signal so both happened around the same time.
But nowadays since our food is so abundant, people rush through their food and don't really savor it (because there's almost always more where that came from!), making digestion poor and misaligning the hunger signal with the fullness one, such that you get the classic situation where your mouth is still hungry but your stomach is full. Weird shit, but completely resolvable by chewing thoroughly and chilling out a bit and simply savoring your food.
But that's sort of a tangent that doesn't necessarily apply to you. Getting back to you in particular: You said you ate 2 lbs of meat. That seems like a pretty large quantity. I'd be careful about going so extreme. Everything (good) in moderation is truly a useful rule; eating 2 lbs of meat seems pretty extreme. Also, as a rule I've found that craving extremely large quantities of specific foods indicates some sort of deficiency, which you can solve more efficiently by simply widening your variety.
I think you should take your tired jaw as a signal that you should stop eating unless you're being paid to eat the 2 pounds of meat in one sitting in some sort of contest in which case, man up and choke it down!
Yeah, you should juice it... do you have a juicer or vita-mix or something? You should definitely keep ingesting until you throw up.
Don't cook your meat. Blend it after cutting it into strips with scissors or buy ground from the store. I've had similar problems and it can play havoc with digestion. Raw meat forever!
Have you tried doing jaw exercises ? You could start by putting your fist in your mouth. This would strech your jaw and improve muscle tone .You could then work up to chewing big pieces of meat. When your Jaw has reached max improvement you will be able to chew a full size cow in one sitting...
Uhm...what? Last time I wore my jaw out (yikes, there is no way I can phrase that without sounding crude!), it was because I was an anxious mess and had chewed the hell out of a pack of gum over the course of several hours.
However, it sounds like you may have a medical issue that needs looked at and I encourge you visit with a doctor to see if you can pinpoint and/or resolve it.
If you are still genuinely quite hungry despite having a sore jaw, then I suggest you find nutrition elsewhere. Heat up some soup, or make a smoothie. If you do starch, eat a bowl of mashed potatoes with butter or something. Set the meat aside and go back to it once you've allowed your jaw to relax a bit. I worry that if you persist, you'll develop some sort of stress fracture or something in your jaw bone.
Good luck. :)