You love ice water
Do you know
When 5 degrees Celsius in water
Drink into a stomach at 38 degrees Celsius
What exactly does the body go through?
With the start of school
With your curiosity
Read this article
Understood, fully understood!
Although it is autumn, many places across the country are still in hot weather, and cold drinks are particularly attractive.
Xiao Ming was attracted by the cold drink.
After a burst of "input" of "tons and tons", Xiao Ming's stomach of about 38 degrees Celsius poured into 5 degrees Celsius of ice water, and his body immediately entered a "wartime" state-
There are many thermoreceptors scattered throughout our bodies, and they are like alert and sensitive "radar stations".
The function of these "radar stations" is very simple, some of them are only responsible for detecting cold stimuli, and some are only responsible for detecting thermal stimuli.
These temperature-detecting "radar stations" are located in the gastric mucosa. When the cold drink enters the stomach, the instantaneous cold stimulation immediately triggers the alarm of the cold detection "radar station".
They immediately dispatched a "pulse signal express" equivalent to a voltage of tens of millivolts, and this pulse signal express drove up the information "highway" of the spinal cord and sped non-stop into the depths of the brain.
The destination of the "express" that transmits the signal is the hypothalamus, which is located deep in the brain. The hypothalamus is the center of human body temperature regulation, not to mention that it only weighs about 4 grams, accounting for only about 0.3% of the whole brain, but it has countless important positions, and is the "comprehensive headquarters" that regulates the internal organs and endocrine activities of the human body.
The "car" drove into the back half of the hypothalamus, the "command division" responsible for generating only heat.
The "commander" of the hypothalamus thermogenesis command subdivision, which received the "warning signal," resolutely dispatched several hormone "emergency squads."
One of the hormone "squads" rushed to the capillaries of the skin and ordered them to contract to limit heat loss from the skin's surface.
Another hormone "squad" rushes to the body's internal organs and organs to produce heat by increasing their metabolic rate. The liver and brain, in particular, are the body's main heat-producing organs at rest.
There was also a hormone "squad" that rushed to the muscles of the body and ordered them to start tense. If needed, the hypothalamus will give a command to prompt Xiao Ming to move his body.
As long as muscle metabolism increases, calories will increase. It will even cause some muscles to shake like a shiver, generating more heat.
In this way, Xiao Ming drank the cold drink to relieve the heat, and mobilized many organs in the body to get busy to reach a constant temperature of the body.
Interestingly, the operation behind all this is an autonomous physiological response that is not controlled by Xiao Ming's consciousness, and all organs of our body are the unsung heroes behind it.
Therefore, after understanding the body's regulation mechanism of drinking cold drinks, it is necessary to drink cold drinks in moderation and slowly.
Source: "People's Daily Science Popularization" WeChat public account
Editor: Wang Sheng
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