Forget the health aspects of smoking. Somehow it seems to distort your personality too. Chuck it, then your conduct improves and life could become more orderly.
New study of the 18-25 age group at the University of Missouri finds those quitting smoking also show significant declines in impulsivity and neuroticism.
In the study, researchers compared people, aged 18-35, who smoked with those who had quit smoking. They found that individuals who smoked were higher in two distinct personality traits during young adulthood:
impulsivity - acting without thinking about the consequences
neuroticism - being emotionally negative and anxious, most of the time
Andrew Littlefield, a doctoral student in the Department of Psychology in the College of Arts and Science.says they found that those with higher levels of impulsivity and neuroticism were more likely to engage in detrimental behaviors, such as smoking. Conversely those who quit smoking had the biggest declines in impulsivity and neuroticism from ages 18 to 25.
"Smokers at age 18 had higher impulsivity rates than non-smokers at age 18, and those who quit tended to display the steepest declines in impulsivity between ages 18 and 25," Littlefield said. "However, as a person ages and continues to smoke, smoking becomes part of a regular behavior pattern and less impulsive. The motives for smoking later in life - habit, craving, loss of control and tolerance - are key elements of smoking dependence and appear to be more independent of personality traits."
Despite the evidence from this study, substance use is still a complex relationship of genetic and environmental factors, Littlefield said.
The study, "Smoking Desistance and Personality Change in Emerging and Young Adulthood," has been accepted by the journal Nicotine and Tobacco Research
. The study was co-authored by Kenneth J. Sher, a professor in the MU Department of Psychology.
Littlefield says the tobacco use study will contribute to ongoing research on the relationship between personality and substance abuse. He recently received a $30,000 grant from the National Institutes of Health to study genetic influences on personality and alcohol drinking motives.