Why do you shiver when it’s cold?

Shivering is a function of the human body’s internal environmental control system. Behind the eyes is a tiny piece of brain tissue called the hypothalamus that controls body temperature. Shivering is the hypothalamus' way of keeping the body at a constant temperature. Shivering when the body is cold causes the body to release energy (in contrast, shivering when the body is hot causes sweating).

Extended information:

Notes on cold weather:

1. Do not go on a diet

It is inevitable to gain weight after "posting autumn fat" , some people have the idea of ​​going on a diet to lose weight, thinking that they can lose weight by eating less because they don’t sweat much in winter, have less activity, and the body needs less calories. But this can lead to reduced resistance.

2. Don’t eat too spicy food

Many people choose spicy hot pot to “warm up”. Spicy food not only stimulates the taste buds, but also stimulates the gastrointestinal tract, causing pain and heat, making people feel warm from the inside out.

However, this kind of stimulation is a challenge to the digestive tract, especially for people with sensitive digestive tracts and prone to inflammation. After eating spicy food, blood vessels will dilate, the face will be flushed, the pores will be opened, and the body will sweat profusely. The heat accumulated in the body will increase with time. Sweat is emitted into the air. If you suddenly go from indoors to outdoors, your pores will not have time to close, and you will easily catch a cold.

Baidu Encyclopedia - Shivering

People's Daily Online - When the weather is cold, there are 4 things to pay attention to when eating.