it is in the hypothalamus. In vertebrates, the hypothalamus is the main nerve center responsible for the regulation of the internal environment of the body.
The functions of the hypothalamus: food intake and maintaining body weight, water intake and water-salt balance in the body, temperature regulation depending on the temperature of the environment, emotional experiences, muscle work and other factors, the function of reproduction.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.