Tobacco
Overview
Tobacco is a recreational product made by drying and processing the leaves of the tobacco plant (Nicotiana tabacum), a member of the nightshade family, and is primarily consumed through smoking. Its main active ingredient, nicotine, is highly addictive, and smoking is known to be a major cause of numerous diseases, including lung cancer, laryngeal cancer, cardiovascular diseases, and chronic obstructive pulmonary disease (COPD). The World Health Organization (WHO) estimates that tobacco causes over 8 million deaths annually, of which approximately 1.2 million are due to secondhand smoke exposure. Beyond being a mere recreational product, tobacco is a social issue with serious impacts on public health, the economy, the environment, and law.
Main Content
History and Origins
Tobacco was originally used by indigenous peoples of the Americas for ceremonial and medicinal purposes. After Columbus's discovery of the New World in 1492, it spread to Europe and, by the 16th century, had expanded worldwide. During the Industrial Revolution in the 19th century, machine-based cigarette manufacturing was invented, enabling mass production. In the early 20th century, advertising and marketing led to an explosive increase in global consumption. After the 1950s, when the link between smoking and lung cancer was scientifically proven, countries began implementing regulations.
Health Effects
Tobacco smoke contains over 7,000 chemicals, of which at least 69 are classified as carcinogens. Smoking increases the risk of lung cancer by 15 to 30 times compared to non-smokers and causes various cancers, including oral, esophageal, bladder, and pancreatic cancers. It is also a major risk factor for cardiovascular diseases such as coronary artery disease, stroke, and peripheral vascular disease, and it causes chronic bronchitis and emphysema. Smoking during pregnancy increases the risks of preterm birth, low birth weight, and sudden infant death syndrome (SIDS). Secondhand smoke poses the same health risks to non-smokers and is particularly harmful to children and pregnant women.
Addiction and Smoking Cessation
Nicotine stimulates dopamine release in the brain, inducing temporary pleasure and improved concentration, but it creates strong dependence. Withdrawal symptoms (anxiety, irritability, decreased concentration, increased appetite, etc.) appear during smoking cessation and typically last 2 to 4 weeks. The success rate of quitting with willpower alone is only 3–5%, but combining nicotine replacement therapy (patches, gum, lozenges), medication (bupropion, varenicline), and counseling programs can increase it to 20–30%. Recently, digital health technologies such as smoking cessation apps and digital therapeutics are also being utilized.
Economic and Social Costs
Smoking imposes enormous economic losses not only on individual health costs but also on society as a whole. The annual global economic cost, including increased medical expenses, productivity losses, and human capital loss from premature death, is estimated to exceed $1 trillion. Additionally, tobacco cultivation causes environmental destruction such as deforestation, soil degradation, and water pollution, and cigarette butts are among the most common types of litter worldwide, threatening marine ecosystems.
Regulations and Policies
The WHO Framework Convention on Tobacco Control (FCTC), an international treaty that came into effect in 2005, has been ratified by over 180 countries. Key policies include raising tobacco taxes, introducing graphic warning labels, banning advertising, expanding smoke-free indoor areas, and regulating tobacco products. South Korea raised cigarette prices from 2,500 won to 4,500 won in 2015 and mandated graphic warning labels on cigarette packs starting in 2016. Recently, regulations on novel tobacco products such as e-cigarettes and heated tobacco products have also been strengthened.
Recent Trends
As of 2024–2025, the use of novel tobacco products (e-cigarettes, heated tobacco products, nicotine pouches) is rapidly increasing worldwide. In particular, e-cigarette use among adolescents and young adults has risen significantly; in the United States, about 10% of high school students reported using e-cigarettes in 2024. In response, countries are introducing measures such as banning flavored e-cigarettes, raising the minimum age of sale, and restricting advertising. The European Union (EU) is pursuing a plan to completely ban the sale of disposable e-cigarettes starting in 2025. Additionally, the WHO is intensifying its 'Tobacco-Free World' campaign in 2025, recommending increased tobacco taxes and expanded smoking cessation support services. In South Korea, graphic warning labels on cigarette packs were replaced with the third generation in December 2024, and warning labels have been extended to e-cigarette liquids. Meanwhile, digital health technologies for smoking cessation (AI-based personalized coaching, virtual reality cessation therapy, etc.) are gaining attention, and research into nicotine vaccines is ongoing.
Related Topics
- [[Smoking]]
- [[Nicotine]]
- [[Electronic cigarette]]
- [[Smoking cessation]]
- [[Lung cancer]]
- [[World Health Organization]]
- [[Framework Convention on Tobacco Control]]