An interdisciplinary investigation that interfaces with psychology and economics. It relates to individual behavior of mental health of a person. For every person the personal utility about rational thinking and authority of migration. The cyclic nature provides a good environment. During ice age they provide a coherent chain of reasoning and safeguard their race against nature. The aim of this review was to find the impact on the economy on rational thinking and psychological well being. A literature review will be carried out from scopus and pubmed databases from 2000 till date. The rational evolution and exponential discounting will be related to the evaluation which depends on the amount of delay and behaviour addiction which procrastinates the impulsive preference and immediate reward for hyperbolic discounting