BigBlueBawls: Insulins f**ked it up.
Your body needs glucose for energy. Everything you eat is broken down into glucose.
1. Foods like “sugary” foods, starch or very simple carbohydrates like rice, bread, pasta, etc, are digested very fast and thus, broken down and turned into glucose very fast.
2. Now, when you eat lots of those foods, lots of glucose goes into your blood very fast.
And your pancrea produce little guys (hormones) called insulins who push that glucose into your cells.
3. When lots of glucose goes into your blood very fast, your organ pancrea freaks out and is like “OMFG! Too much glucose in the blood. Too much glucose wandering around in the blood = poison!! Guys!!, Insulins!!, go go go!!! Go push them into the muscle cells and fat cells to properly store them.” and then Pancrea produce lots of fucking insulins. May be even too much insulins.
4. Those lots of little fuckers called insulines push all the glucose from your blood into the cells.
5. Then, very low level of glucose in your blood. So, your body thinks “Hey, my blood needs glucose. I need sugar(glucose). Feed me.”
cosmoboy: It depends on what you’ve eaten.
When you eat a meal at bedtime, particularly one rich in sugars and other simple carbohydrates, you generate an insulin surge from your pancreas. Upon retiring, this insulin begins pushing glucose into your cells, a process that continues as you sleep. During the night, a continual drop in your blood glucose stimulates the release of counter-regulatory hormones, leading to stimulation of your appetite centers. Unless you get up in the middle of the night to satisfy your appetite, you will be hungry upon arising in the morning.
stinky_lizard: What is happening blood sugar levels rebound from being way too high, temporarily putting you in a ‘starving’ state with regards to blood sugar. This is called [reactive hypoglycemia](http://www.diabetes.co.uk/reactive-hypoglycemia.html). Basically you are throwing your body’s hormones way out of line. The large amount of insulin your body has to produce to deal with the amount of food you ate can lead to [type 2 diabetes](https://www.endocrineweb.com/conditions/type-2-diabetes/type-2-diabetes-causes), where your body becomes less responsive to insulin and you have to poke yourself with needles for pretty much the rest of your life.
mrcpu: Go check out the fasting and keto subs for a complete answer but essentially you are in a cycle of high glucose – insulin release – crash – hunger
tangoechoalphatango: Uhhh you do?
If I had a big dinner, I won’t be hungry until the next evening.
pattylove210: We usually get hungry every 4-5 hours during the day. We sleep usually 7-8 hours do it’s about that time to eat again. Your body has been digesting for a good amount of time
QuantumReality11: Who spends a night binge eating?
mtr0n: When you eat so much before sleeping (probably lots of carbs/sugar) you wake up so hungry, because your body is now activated to burn all the food and while sleeping it will continue to do so.
And after a long night rest of approx. 6h you wake up empty and hungry because your body has just been digesting and laying around.
stendhal_project: The question is why I’m not hungry in the morning, when the night before I was struggling falling asleep, because I was starving to death.
Doenerschuh: Not a scientist or anything, but I heard that when you eat really much it stretches your stomach. And then over night you digest part (or all?) of it. So then when you wake up, your still stretched stomach feels more empty (I know, empty is absolute)than it actually is.
Edit: Sorry for bad English
homesteads45: Your brain and body believe it or not, are the most active at night. Debris are cleaned up from the brain (this is what people refer to as “refresh your brain and sleep”), not to mention that dreaming expends a significant amount of ATP. As such, it is no surprise that all of that food you ate gets consumed during your sleeping to help restore and maintain bodily functions.
joeblessyou: Because food works like a drug, and in general, people respond to the reward mechanisms of the brain in respect to the *taste* of food and not the nutritional content or caloric content (which includes quantity, since more food is more energy). If your hunger is triggered by craving taste, it will reset independently of what your digestive system has already processed. The feeling of hunger will return once the drugs that were released subside and you can now enjoy food again. This is why people have such a hard time dieting. Your hunger is not what you should be managing, but rather the nutrients and the calories, and since our brain doesn’t do that work for us, we have to do that consciously. Eventually if we only present our brains with what we have consciously chosen as good food and a good amount, it may adjust this reward system, and eating the right amount and the right foods etc., is not as painful.