Chili peppers are a plant native to Central and South America, with an attractive color and fiery flavor, a delicacy that most people can't resist. In Hunan, Sichuan and other places, chili peppers are a must for every meal, and has developed a large number of "fear of not spicy" eating spicy little maniacs.
With the spread of food culture due to population movement, Sichuan and Hunan cuisines have taken root all over the world, attracting a large number of diners who have been unable to eat spicy food since they were young, but who are still in pursuit of the excitement of spicy food. However, some people find that although eating chili peppers is very cool, but after eating, they face diarrhea, anal burning sensation and other problems, really upset.
Why do chili peppers bring "spicy" and "cool" feelings? This is thanks to capsaicin. Capsaicin is an alkaloid containing vanillin, which binds to vanilloid receptor subtype 1 (VR1) in sensory neurons. Since it is the burning sensation that is conveyed by the activation of the VR1 receptor (it is also activated in response to thermal stimulation), when you eat a chili pepper, what you feel is a burning sensation. This burning sensation causes the brain to create a false notion that the organism is injured and begins to release the body's own pain-relieving substances, endorphins, so it can give a euphoric feeling that gets better and better the more you eat, and the more you want to eat.