Psychological Factors and Smoking
15 Jun 2010Cigarettes contain nicotine, a highly addictive drug. While nicotine has definite physiological effects on smokers, smokers also experience psychological effects related to smoking. The combination of physiological and psychological effects makes it difficult for smokers to quit.
Function
Nicotine comes from the tobacco plant and works by activating the reward pathways in the brain. Nicotine raises dopamine levels. Dopamine increases the desire to consume a particular drug.
Effects
Nicotine dependence causes psychological withdrawal symptoms in smokers. Symptoms include depressed mood, irritability, anxiety and concentration difficulties.
Treatment
Nicotine replacement therapies, or NRTs, such as the transdermal nicotine patch and nicotine gum help smokers handle their nicotine dependence. By providing nicotine, NRTs help alleviate the negative psychological effects stemming from withdrawal symptoms.
Considerations
The negative psychological effects stemming from nicotine dependence cause many smokers to fail in their attempts to stop smoking.
Misconceptions
According to Martin J. Jarvis, Ph.D. of the Department of Epidemiology and Public Health at University College in London, research does not support smokers’ perception that nicotine provides psychological benefits, such as stress reduction. Jarvis contends that smokers experience the stress of nicotine withdrawal. Smoking only soothes the symptoms of nicotine withdrawal and not other life stressors.
- National Institute on Drug Abuse: Tobacco Addiction [http://www.drugabuse.gov/tib/tobacco.html]
- National Institutes of Health: ABC of Smoking Cessation: Why People Smoke [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC324461/]
- National Cancer Institute: Dispelling Myths about Nicotine Replacement Therapy [http://cancercontrol.cancer.gov/tcrb/documents/MythsaboutNRTFactSheet.pdf]
- U.Porto: The Neurobiological Basis for Partial Agonist Treatment of Nicotine Dependence: Varenicline [http://medicina.med.up.pt/farmacologia/pdf/Foulds_vareniciine.pdf]
- National Institute on Drug Abuse [http://www.drugabuse.gov]

