Many people wonder about the personalities of others that how they aresame or different from each other. Most of them also want to know howpersonality works in day to day life.

Personality psychology concerns what ourpersonalities are, how they work, and what they can mean to our own andothers' futures. The discipline of personality psychology helps answer some ofthese questions.

If such questions interest by the people, then people may wantto learn more. In the characterizing, the statement of Gordon Allport, Hall and Lindzey(1957) opined personality as the essence of human being.

It is the sum total ofways in which an individual reacts to and interacts with others. Factors thatdetermine personality are both heredity, or genetic, and environmentallydetermined.

Researchers have found that genetics accounts for about fiftypercent of personality variation and more than thirty percent in occupationaland leisure interests. Specific dimensions of personality include shyness, aggression,submissiveness, laziness, loyalty, and timidity.

These are collectively known aspersonality traits. Traits are believed to be important in employee selection,matching people to jobs, and in guiding career development decisions.

In an organized review of the relationship between personality traits andsuicide risk, Brezo et al. (2006) revealed neuroticism and extraversion to be themost consistently replicated characteristics to be associated with suicide-relatedbehaviours.

Specifically, higher neuroticism was related to suicidal ideation,suicide attempts, and completed suicide, while extraversion was found to be aresilience factor for suicidality. .