New Knowledge of Chao Ren ｜ You can continue to eat desserts and drink milk tea when you are full?

Author:Yangcheng Evening News Yangche Time:2022.07.02

Text/David B.clear

A newly baked pizza, a fluffy cake made of slow fire ... When you are full, you can't be full, and someone asks, "Would you like to come with a dessert?" You may open your eyes and grin: "Well, if you dessert, you can still eat a little more."

This is the "dessert stomach" we often call. It seems that the stomach of the dinner and fashion meals is not the same?

Recently, an article published in medical magazines also specifically demonstrated the existence of this "dessert stomach".

But please note that the so -called "dessert stomach" does not exist. It is just a humorous statement of scientists. As for we can "come again", there are other reasons.

The temptation of food is often difficult to resist map/visual China

There is a professional term called "Sensory Specific Speech"

How do you know that you are full? This is of course not because the food is full of your stomach. This body mechanism that produces "fullness" actually exists in your brain -the brain controls almost all our physical function.

Specifically, this thing that can perceive "fullness" is located in the hypothalamus of the brain. It also acts as the "control center" of "hunger".

When you swallowed pizza, the food moves down along the esophagus through your mouth and eventually falls into your stomach.

As you eat more and more, the pizza starts to fill your stomach, the stomach will swell, and then detect by the surrounding "tensor", and then the "tensor" sent a signal to your hypothalamus through the vagus nerve.

When the signal reaches the hill brain, they will touch the "fullness meter": if you continue to eat, the sense of satiety will continue to rise, making you feel that you can't install more other things. "

When this instruction reaches the highest index, you will stop eating. This is because in addition to the general "fullness", there is also an additional "instrument" in your brain to measure the "sensory specificness".

What is sensory specificity?

Food has a variety of senses: sweet, salty, crispy, oil, slippery, spicy, chewy, tender, sour, hot, cold, greasy, juicy, crispy, crisp, etc. For each sensory characteristics, you have a specific satiety meter.

In other words, your brain not only records how full your stomach is, but also measures how much greasy food you eat, how much salty foods you eat, how much sweet food you eat.

When you are full of pizza, it is not because you really eat a lot of things, but because you have a specific sensor saturation meter in your brain that you have eaten enough greasy and salty foods. In other words, your brain is tired of food with similar characteristics of pizza.

However, at this time, when you see another completely different food, such as chocolate cake, its sensory characteristics have nothing to do with Pizza, then your appetite will suddenly recover -because your sweetness meter is still " "Empty", then, there is naturally space in your belly to install desserts.

In addition to the sense of "fullness" in the senses, there is an additional reason for the incredible behavior of eating a piece of cake just after eating six pizza, but you can still eat a piece of cake: your stomach does make more foods. Time.

The stomach is composed of muscle walls. When your brain expects new food, it will send a relaxed command to your stomach. And after receiving this command, your stomach will relax and expand like a big headfish from the deep sea. It will indeed increase its own volume to accommodate more food.

So, while you secretly release your belt, your stomach has quietly done the same thing.

Photo/Visual China

This special feeling makes you overeating

Unlike pandas, humans not only survive by one kind of food. Human beings are omnivorous animals, and we need a diverse diet to maintain all nutrients needed for physical health.

Therefore, our ancestors have evolved this "sensory specificity fullness" -The people who only eat one food may die from malnutrition, and those with sensory specificity can reproduce.

Therefore, the sense of sensory specificity is so important to us, so that it is completely subconscious. It can be reflected even in people who have unborn, may not remember what the last meal is, or whether they really have eaten.

Let patients with forgetfulness let go as much as possible to eat sandwiches, and then wait for them to forget what they have just ate, and then provide them with a second meal. If they eat sandwiches, they will still eat less than other things. Then they will eat less. The meter in the body is telling their bodies: "We don't want to eat this kind of food anymore."

As a subconscious, a specific sense of satiety seems to protect us from eating too many types of foods. However, the situation is not exactly the case. Because our brain is really easy to be "foolish".

In another experiment, the researchers asked the testers to eat smart beans with the same color -such as red. Then, soon after, they gave them more smart beans, the taste, texture and smell of these beans were the same.

Strangely, when eating the second smart beans, testers eat other colors of beans more than red -their senses and specific satiety are "foolish" by the artificial pigment pigment.

Our brain may assume that if something has different colors, it will also have different nutritional value. Therefore, when we see more colorful beans, rainbow sugar, donuts and plates filled with ice cream, we will perform more hungry than the actual situation. Because when our brain sees all this, we will say, "It is best to keep hunger so that we can obtain nutrition from each color."

To make matters worse, modern industrial garbage foods have a variety of texture, tastes and colors after special design. They can stimulate our taste buds as much as possible and let us eat more.

How can I overcome it and let myself eat less?

Since you can eat to a large extent, it depends on your brain to get bored with the food in front of you, then is there any way to ensure that your brain is bored faster, so you won't eat so much? Of course there are.

First, avoid buffet. There are too many types of buffets. Even if your goal is not to let the restaurant owner go bankrupt, you will eat more than usual;

Second, do not use sauce and other condiments. Or at least insist on using the same seasoning or sauce. If you have a plate of fried fries with tomato sauce, and then carry a plate of fries dipped in egg yolk sauce, you will definitely eat more;

Third, eat small mouth. Put away your big spoon and eat with teaspos or chopsticks. Studies have shown that a bite of size and sip can affect your satiety, because the sense of fullness of sensory specificity cannot be measured how many specific foods have entered your stomach, but how many mouthfuls you eat;

Finally, remember to eat slowly, don't gobble. This will extend the time exposure of your food, and you will not eat too much because you are tired.

In addition, by eating slowly, you can also let other mechanisms play a role to prevent further your stomach, such as an additional intestinal supporting sensor and a large number of chemical signals from the intestine.

At this point, you should be able to understand why you can always eat desserts?

This is only because your brain is tired of the staple food after eating the main food, but another thing with different textures, colors, tastes and shapes Once you place in front of you, your appetite will still recover immediately.

(Original source: Institute of Physics of the Chinese Academy of Sciences)

The original article was published in "Yangcheng Evening News", June 30, 2022