Why do I feel sleepy for a long time after eating?

After a morning of study and work, you may feel tired, and the brain is deprived of oxygen after eating, so you naturally want to doze off at noon. In addition, the temperature is high during the day, sweating a lot, physical exertion is too large, and the scorching sun is in the sky at noon, at this time, the blood vessels of the human body are dilated, and the blood supply to the brain is reduced, so I often feel sluggish and drowsy.

Many people have some energy decline after eating, which is not necessarily abnormal, the main reason is that after eating, too much blood flows to the gastrointestinal tract to digest food, and the amount of blood entering the brain decreases somewhat, and some lack of oxygen, so they are sleepy.

Do you know the truth of "full of food"? In order to digest food after eating, a part of the blood flows back into the stomach and intestines, resulting in a short period of insufficient blood supply to the brain, lack of oxygen, and people feel sleepy.

You call it "prolonged fatigue", which is not normal and may be caused by insufficient levels of oxygen in your blood. According to my analysis, you may be a person who does not like sports or has a weak physique.

I'm in the same situation as you, and according to the doctor, I have a bad spleen. But not a big deal. I have a friend who is even more severe, so severe that he has to sleep every day after eating to regain his spirits.

Because in order to digest food, a lot of blood is concentrated in the stomach, and the blood carries oxygen, which causes insufficient oxygen supply to the brain, so I feel sleepy, so don't eat too much at every meal, it's best to walk more after eating, and if I still have classes or work, I personally will drink some coffee, which is refreshing and helps digestion.

Because all your blood is used to digest, there is less blood in the brain.

1. Orexin

After the body eats a meal, the blood sugar will rise after the meal during the whole process of digestion of the ingredients, and at the same time, the metabolism of appetite hormone in the body will be suppressed. If the appetite content is reduced, the body is more likely to be sleepy and reluctant to pop out, and the higher the appetite content, the body will be more awake and active. Therefore, especially when eating starchy foods that are easier to digest, the blood sugar level rises relatively quickly, and it is easier to feel sleepy.

2. Gallbladder contractile hormone

A study by Stanford School found that the metabolism of cholermin in the body generally increases significantly within two hours after a meal, and the excretion of this type of cholermin decreases after two hours; Comparatively speaking, the higher the content of cholesterin, the more likely it is to be drowsy. In addition, the higher the fat percentage, the higher the bile level will be, and the more sleepy it will be.

III. Insulin

After the meal, the glucose water in the food is digested and absorbed by the body, and insulin glargine will be metabolized to help control blood sugar. Insulin glargine promotes protein synthesis, increases the amount of glutamate that is commonly contained in the body, and produces serotonin 5-5 in the brain, which can further produce insomnia drugs, which in turn causes sleepiness in the body. In addition, insulin glargine continues to push calcium ions from the blood into the body cells, and if the body is mildly hypokalemia, the body can also experience fatigue and drowsiness.

Fourth, if you are often sleepy, you should check it

Sleepiness is mainly caused by insufficient blood supply to the large brain and relative oxygen insufficiency. People with high blood lipids have relatively sluggish blood fluidity, which endangers the oxygen-carrying ability of blood cells, and high blood lipids will produce atherosclerotic soft plaques in the body's aorta, resulting in narrow capillary lumen and insufficient oxygen for cerebral embolism. If the blood supply is insufficient, it will cause a lack of oxygen to the brain, which in turn will lead to a decrease in the activity of the central nervous system, and the main manifestation is not enough sleep.

Symptoms of distress often occur, indicating that there is a problem with cardiovascular convergence and further investigation is required to determine the cause.

That's because the blood sugar in the human body rises after eating, which will inhibit the thalamus secretion of orexin, and when the orexin content is relatively low, you will feel drowsy and don't want to exercise, especially if you eat high-carbohydrate foods such as rice and pasta, which can lead to a rapid rise in blood sugar and make people sleepy quickly.

This is because the comfort of the body will improve after eating, and it will be very weak after eating, so it is necessary to sleep at this time.

This is because after a full meal, the organs are satisfied, and the brain is relaxed, so it is very sleepy.

If you feel sleepy after eating, considering that the patient has spleen deficiency, the burden on the spleen will increase after eating, and more blood and gas circulation will be needed to help the digestion and transmission of food, and the blood circulation in the mind and other parts will be reduced, so that the patient will feel sleepy after eating.

I often feel sleepy after lunch, is it because the blood is concentrated in the stomach and away from the brain?

Not really. Many people think that after eating, the blood of the whole body is concentrated in the digestive system to help gastrointestinal peristalsis and digestion, which will cause insufficient blood supply to the brain and make the brain lack oxygen, and people will feel sleepy, but this is not scientific.

As the most important organ of the human body, the human body will give priority to ensuring the blood of the brain**, if it is really as many people think that the brain is short of oxygen due to the reduction of blood supply, then the person should feel dizzy instead of simply sleepy. Foreign studies have indeed found that the blood flow to the brain not only does not decrease but increases after meals.

So why is there "food sleepiness"?

This is mostly related to the endocrine status of the human body after meals. When a person eats a high-carbohydrate food, the blood sugar rises, which inhibits the hypothalamus from secreting an appetite hormone, which is low in protein hormones, making the person feel tired and drowsy.

In addition, researchers in the United States found that the secretion of cholecystokinin may be related to drowsiness after meals, and the researchers tested the amount of cholecystokinin secretion and drowsiness scale scores of the subjects before and after meals, and found that there was a positive correlation between the two, that is, the more cholecystokinin secretion, the more sleepy people were. If the food you eat is too greasy, you will secrete a lot of cholecystokinin, which may also be the reason for feeling "sleepy" after eating.

It may be because a large amount of blood flows to the digestive system, causing the brain to be a little undersupplied, so it will be sleepy.

This is a matter of habit, don't develop such a habit, it's not good.

The stomach needs blood for digestion, and the brain is less oxygenated, and it is sleepy.