Maslow's hierarchy is a psychological theory explaining levels of human needs. Physiological, safety, love, esteem, and self-realization are various levels mentioned in the theory.

Key points. Maslow’s "hierarchy of needs" is often presented as a five-level pyramid, with lower and higher needs. The four lower needs, if unmet, result in distress.

In 1943, psychologist Abraham Maslow came up with the hierarchy of needs, a ranking of what you have to have fulfilled in your life to reach self-actualization.

Maslow’s so-called "hierarchy of needs" is often presented as a five-level pyramid (pictured), with higher needs coming into focus only once lower, more basic needs have been met.

While there are a lot of things we find ourselves chasing day after day, if you go back and look at Maslow’s Hierarchy, you will find the most basic physiological needs are things like breathing ...