According to Maslow's hierarchy of needs, which need comes first?

In Maslow's hierarchy of needs, the physiological needs are the most basic and fundamental requirements for human survival. These include necessities such as food, water, shelter, sleep, and warmth. According to Maslow, these needs must be met before individuals can focus on higher-level needs, such as safety, love and belonging, esteem, and self-actualization.

Physiological needs are the foundation upon which all other needs are built. Without satisfying these essential requirements, a person cannot devote attention or energy to fulfilling psychological and social needs. For example, if an individual is deprived of basic sustenance, their primary concern will be finding food and water rather than developing social relationships or achieving personal goals. This foundational aspect of Maslow's theory emphasizes that while all needs are important, they are arranged in a hierarchy that prioritizes survival and basic functioning.