Health

E-cigarette, Juul and vaping devices addicting youth

You might be curious to find that many of the products that look like school supplies in a student's backpack could in fact be e-cigarette devices designed for addiction. While we have seen a decrease in cigarette smoking ...

Health

FDA proposes graphic warning labels on cigarettes

(HealthDay)—Smokers would have to get past some gruesome imagery to purchase a pack of cigarettes under a new rule proposed Thursday by the U.S. Food and Drug Administration.

Health

CDC: Over one-third of U.S. youth exposed to secondhand smoke

(HealthDay)—More than one-third of U.S. nonsmoking youth are exposed to secondhand smoke (SHS) from tobacco, according to an August data brief published by the U.S. Centers for Disease Control and Prevention National Center ...

Health

WHO says e-cigarettes 'undoubtedly harmful'

Electronic cigarettes are "undoubtedly harmful" and should be regulated, the WHO said Friday as it warned against the use of vaping products by smokers trying to quit their deadly habit.

Health

Researchers show kids widely exposed to smoking in movies

More than half of the top-grossing movies in Ontario in the past 16 years featured smoking, according to University of Toronto researchers with the Ontario Tobacco Research Unit—and most of these films were rated as acceptable ...

page 1 from 23

Tobacco smoking

Tobacco smoking is the practice where tobacco is burned and the vapors either tasted or inhaled. The practice began as early as 5000–3000 BC. Many civilizations burnt incense during religious rituals, which was later adopted for pleasure or as a social tool. Tobacco was introduced to the old world in the late 1500s where it followed common trade routes. The substance was met with frequent criticism, but became popular nonetheless. German scientists formally identified the link between smoking and lung cancer in the late 1920s leading the first anti-smoking campaign in modern history. The movement, however, failed to reach across enemy lines during the Second World War, and quickly became unpopular thereafter. In 1950, health authorities again began to suggest a relationship between smoking and cancer. Scientific evidence mounted in the 1980s, which prompted political action against the practice. Rates of consumption from 1965 onward in the developed world have either peaked or declined. They however continue to climb in the developing world.

Smoking is the most common method of consuming tobacco, and tobacco is the most common substance smoked. The argicultural product is often mixed with other additives and then pyrolyzed. The resulting vapors are then inhaled and the active substances absorbed through the alveoli in the lungs. The active substances trigger chemical reactions in nerve endings which hightens heart rate, memory, alertness, and reaction time. Dopamine and later endorphins are released, which are often associated with reward and pleasure. As of 2000, smoking is practiced by some 1.22 billion people. Men are more likely to smoke than women, however the gender gap declines with younger age. The poor are more likely to smoke than the wealthy, and people of developing countries than those of developed countries.

Many smokers begin during adolescence or early adulthood. During the early stages, smoking provides pleasurable sensations and thus serves as a source of positive reinforcement. After an individual has smoked for many years, the avoidance of withdrawal symptoms and negative reinforcement become the key motivations.

This text uses material from Wikipedia, licensed under CC BY-SA