An example would be Maslow's hierarchy of needs and Herzberg's two-factor theories, motivation issues are explained in the hierarchy of needs theory of Maslow. This theory shows individual changes due to job satisfaction and takes into account the five motivational needs such as physiological, safety, social, esteem and self-esteem. Each person evolves towards different needs at different times to satisfy themselves. If they don't move to satisfy their needs, they don't satisfy them; if they are not satisfied, it affects the financial situation, career and the health of the physiological system.