"The lower four layers of the pyramid contain what Maslow called "deficiency needs" or "d-needs": esteem , friendship and love, security, and physical needs. With the exception of the lowest (self-actualization) needs, if these "deficiency needs" are not met, the body gives no physical indication but the individual feels anxious and tense.In other words, the hierarchy level of need moves upward as soon as the previous level of need is satisfied."