Maslow's hierarchy of needs theory was put forward by abraham maslow, a representative figure of humanistic psychology, in 1943. Its basic content is to divide people's needs from low to high into five needs: physiological needs, safety needs, social needs, respect needs and self-realization needs.
The first level: physiological needs
Physiological needs, also known as the lowest and most favorable needs, include breathing, water, food, sleep, physiological balance, secretion and sex.
If any of these needs (except sex) are not met, people's physiological functions will not function normally. In other words, people's lives will be threatened. In this sense, physiological needs are the most important driving force of human action. Maslow believes that only when these basic needs are satisfied to the extent necessary for survival can other needs become new incentive factors, and at this time these relatively satisfied needs no longer become incentive factors.
I hope this answer can help you!