Respiration, water, food, sleep, physiological balance, secretion.

This is the survival need proposed at the first level of Maslow's need theory and is the most basic survival factor. The most basic conditions for human survival must be met at the same time.

If any of these needs (except sex) are not met, the individual human physiology will not function properly.

In other words, human life will be threatened. In this sense, physiological needs are the most important driving force for people's actions.

Various needs are in a progressive relationship, and only when one level is satisfied can one reach the next level.

Extended information:

Maslow's Need Theory:

Physiological needs, the lowest and most advantageous needs, such as: food, water, air, Libido, health.

Safety needs are low-level needs, including personal safety, life stability, freedom from pain, threats or diseases, etc.

Social needs are higher-level needs, such as: the need for friendship, love, superior-subordinate relationships, love for family and the desire for reproduction.

Esteem needs are higher-level needs, such as achievement, reputation, status and promotion opportunities. Esteem needs include both personal feelings of achievement or self-worth and the recognition and respect of others.

Self-actualization needs are the highest level of needs, including the need for truth, goodness and beauty, and the attainment of a realm of life. Therefore, only when the first four needs can be met can the highest level of needs be generated one after another. Derivative needs, such as: self-realization, realizing potential, etc., expanding talents and achieving breakthroughs.

Baidu Encyclopedia-Maslow’s Need Theory