Human tries to first achieve deficiency needs than after he tries to achieve growth needs that are continually shaping behavior [Wikipedia].
Biological and Physiological needs: Physiological needs take highest priority, because it can control thoughts and behaviors causing people to feel sick, pain and discomfort. These types of needs mainly consist of air, food, drink, shelter, warmth, sex, sleep, homeostasis and excretion
Safety needs: This need comes after the Physiological needs are met. This is a natural phenomenon that one moves next level after achieving one stage. Everyone wants to have safety and security. This may be for physical security, health security, employment security, revenues, property and resources security, moral and physiological security, family security, etc.
Belongingness and Love needs: When physiological and safety needs are met than human want to have social needs that mainly involves emotionally based relationships. This type of needs is workgroup, supportive and communicative family, affection, relationships, Friendship, and sexual intimacy. A human nature needs to feel belonging and acceptances from social group or social connections and love and to be loved (sexually and non-sexually) by others. Absence of these needs can cause one to feel being alone and depressed. Sometime belonging and love need overcome the physiological and safety needs that depend on the strength of the peer pressure.
Esteem Needs: According to Maslow, all humans have a need to be respected, to have self-respect, and to respect others. People need to engage themselves in order to gain recognition. People have an activity or activities that give the person a sense of contribution, to feel accepted and self-value, be it in a profession or hobby. Imbalances at this level can result in low self-esteem, inferiority complexes, and an inflated sense of