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1 year, 11 months ago

Why do I wake up ridiculously hungry after eating an enormous meal the night before?

In a random conversation my wife and I uncovered a strange fact - we both wake up crazy-hungry whenever we had a huge dinner the night before. Eat a normal dinner around 7pm, wake up normal-hungry. Eat a huge meal at 9pm, wake up crazy-hungry. Are we just crazy, or is there some sort of metabolic science behind this?
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owl's Avatar
owl | 1 year, 11 months ago
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Since your apetite depends largely on your activities (the more physically or mentally active you are, the more you feel hungry due to more calories burnt), the season (you feel more frequently hungry and have comparatively better apetite in winter because your body burns more calories to keep you warm), your built (the bigger you are, the more food your body needs) and your lifestyle, it will be too early to comment anything adverse on your eating at night without knowing the above factors (you did not mention them here).

But still, I would say that as long as you are otherwise healthy, fit and active and not depositing fat around your waist, it is fine and there is nothing crazy in it.

But again, at the same time, there is a disorder named "Night Eating Syndrome" which is relatively new to medical world. It is more a psychological disorder than physiological. A lot can be written about it here, but there is no point since the matter is already available in the following sites;

http://en.wikipedia.org/wiki/Night_eating_syndrome

http://www.healthyplace.com/eating-disorders/main/night-eating-syndrome/menu-id-58/

http://www.waldenbehavioralcare.com/night_eating_syndrome.asp

http://www.wrongdiagnosis.com/n/night_eating_syndrome/intro.htm

Hope that helps.

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owl's Avatar
owl | 1 year, 11 months ago Report

Thanks a lot everybody!

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jammons's Avatar
jammons | 1 year, 11 months ago
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A large meal (especially one without meat in it) will cause a rise in your blood sugar, this leads to a release of insulin which signals your body to uptake that blood sugar into your cells. If you're eating a lot of carbs, it's quite likely that your body will overshoot a bit on the insulin, meaning that your blood sugar will fall too low while you sleep, causing your body to send you the signal eat more food to bring your blood sugar back up.

Eating more complex carbohydrates (vegetables) and mixing in more protein and fat into your meal will help alleviate this.

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potterarchy | 1 year, 11 months ago
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That happens to me, too! Personally, I find that I crave more food the more I eat.

The stomach doesn't actually permanently expand if you eat more than you usually do. It will stay distended for a day or so digesting a large and/or fatty meal, but that shouldn't be what's causing your morning hunger. Instead it's most likely just a psychological state - if you get used to eating more, your brain wants and expects more.

Could be that it's a survival instinct built in - if you've got the food, eat as much as you can. But if you don't have any food, don't spend any extra energy worrying about it. I don't have any research to back that up though, that's just a personal theory. :)

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irishstephen1974 | 1 year, 11 months ago Report

Just wanted to go on record as saying that the same thing happens to me too!! I noticed it just a couple of nights ago in fact... Crazy!

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johnsiscel | 1 year, 11 months ago
5
It's called break fast, which means to literally break your fast. You're fasting all night as you sleep, burning up calories, so it's natural to wake up super hungry. To change this, don't eat a huge meal, at 9. Have your normal dinner at 7, then a protein shake right before you go to bed, and you won't have this happen. It doesn't have to be an expensive protein, just the cheap, decent kind at costco.

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bklynjs | 1 year, 11 months ago
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This is because a large meal intereres with a hormone called ghrelin which tells the body to stop eating. Especially if you have a high sugar and fat meal which interferes with the message sent to the brain.It also sets up the pattern you have for eating. If you never eat breakfast and then eat breakfast for a few days this is the hormone that will adjust your body to this pattern and make you hungry in the morning. The large meal also creates an insulin spike which interferes with leptin which is secreted by fat cells which send the signal to stop eating. The spike is followed by a lull which causes you to be hungry. Your bodies hunger patterns are really a complex mix of many signals sent to the brain which is what tells you you are hungry.

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catemars | 1 year, 11 months ago
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What jammons said about blood sugar and, in addition, it is true that your stomach will expand if you eat a large meal, so yes, you will want to fill it back up.

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njikli | 5 months, 2 weeks ago
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Ways you can take frequent meals to reduce food intake to the amount of each meal, can reduce hunger. Recommend a weight loss product meizitang slimming capsule, a good friend I used, well, you can use, and will definitely lose weight. Here you can learn more about the Web site. I wish you health! http://www.meizitang.us/

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barakabacca | 1 year, 11 months ago
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You've stretched your stomach and your metabolism went crazy while you were sleeping and digested and processed everything, and now, with an empty and stretched stomach, you're hungry!!

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chemist's Avatar
chemist | 1 year, 11 months ago
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While I was studding chemistry practical to a Christian father in our Honours level of class. The practical demonstrator (father) put some cooked meat in (i) a highly concentrated alcoholic glass, (ii) put some cooked meat in a glass of water and invited us to show the result after 7-8 hours. Later on, we observed that the alcohol totally dissolved the meat but it was intact in water glass. Our teacher wanted us to show the bad power of alcohol on human body.

Why, I have mentioned it here – I would like to say that in a normal dinner around 7 pm, with normal drink, you wake up with normal-hungry. However, eat a huge meal at 9 pm, with huge alcoholic drink, which digest / dissolve all the inner food substance of the stomach within 6-7 hours and you wake up crazy-hungry.

Q: Is there some sort of metabolic science behind this?
ANS: Yes, your assessment of “metabolic science” is supported by the following quote. Occasionally, intake of alcohol in dinner is good for health – suggested by some health specialist.

-quote-
Alcohol has been known to mitigate the production of antidiuretic hormone (ADH), which is a hormone that acts on the kidney, favoring water reabsorption in the kidneys during filtration. Alcohol helps to digest food partcicle easly and induces hunger. This occurs because alcohol confuses osmoreceptors in the hypothalamus, which relay osmotic pressure information to the posterior pituitary, the site of ADH release. Alcohol causes the osmoreceptors to signal that there is low osmotic pressure in the blood, which triggers an inhibition of ADH. Consequently, one's kidneys are no longer able to reabsorb as much water as they should be absorbing, leading to creation of excessive volumes of urine and subsequently overall dehydration.

http://en.wikipedia.org/wiki/Short-term_effects_of_alcohol
-end quote-

http://www.stopdrinkingadvice.org/
www.muscleandstrength.com/.../creatine-and-alcohol.html -
images:

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kelraye78 | 1 year, 11 months ago Report

That is very interesting, chemist, but the asker did not say whether he even consumed alcohol, so there are still unknown variables here. I have noticed that the same thing happens to me, but only on occasion. Could it have more to do with what types of foods are being consumed and not necessarily the amount? Or maybe it has something to do with the time? I appreciate your input.

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anngie's Avatar
anngie | 1 year, 11 months ago
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I think its mind over matter. or maybe you are not eating the right food at the right times.

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rsunset327 | 1 year, 11 months ago
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Not a technical answer:

My grandmother says if you eat a ton before bed it will stretch your stomach and in the morning you'll be twice as hungry as usual.

I think it does have something to do with carb and protein intake though.
source(s):
folklore?

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m_tufuor's Avatar
m_tufuor | 1 year, 6 months ago
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Your parasympathetic is more active at night and your sympathetic system less active at night.
The sympathetic system is responsible for secretion of some digestive enzymes such as amylase (for carbohydrate or sugar digestion in the mouth). It is also for glycogenolysis -conversion of glycogen to glucose and gluconeogenesis- formation of glucose from non-carbohydrate sources
The parasympathetic system secretes gastric acid also for digestion

So when you eat around 6,7pm there is normal digestion and food is assimilated in the body.
When you eat at night (9, 10pm or later), the sympathetic system which is does not produce enough amylase for carbohydrate digestion. So even when the parasympathetic secretes more gastric acid the initial process of food digestion never happened so nothing really happens.
Again the process of glycogenolysis and gluconeogenesis is slowed since like I said before the sympathetic system slows down at night. This also means that less glucose is made from the liver to compensate undigestion of the food you ate.

So basically when you eat at night food is not digested well for assimilation into the body and also the liver is unable to compensate properly due to decreased sympathetic system. A hunger signal is sent to the brain (lateral hypothalamus) which u feel in the morning.

I hope this answers your question.

This means that your meal will go undigested and then you

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