Addiction: An uncontrollable compulsion to
repeat a behavior regardless of its consequence.
Carcinogen: A substance that can cause changes
that can lead to cancer. Carcinogens are categorized into levels
by the Environmental Protection Agency. Tobacco smoking is classified
at the highest-rated, carcinogenic to humans. Secondhand smoke
has been classified in this same group.
Environmental Tobacco Smoke (ETS): Secondhand
smoke is also called environmental tobacco smoke (ETS); exposure
to secondhand smoke is called involuntary smoking or passive
smoking.
Mainstream Smoke (MS): The smoke that smokers
pull through the mouthpiece when they inhale or puff. Nonsmokers
are exposed to mainstream smoke when smokers exhale.
Nicotine: One of the many cancer-causing ingredients
in a cigarette. An addictive drug, which when inhaled in cigarette
smoke reaches the brain faster than drugs that enter the body
intravenously.
Physical dependency: Defined by the appearance
of characteristic withdrawal symptoms when the drug is suddenly
discontinued.
Psychological addiction: A dependency of the
mind that leads to psychological withdrawal symptoms.
Secondhand Smoke (SHS): Secondhand smoke is
a mixture of the smoke given off by the burning end of a cigarette,
pipe, or cigar, and the smoke exhaled from the lungs of smokers.
Sidestream Smoke (SS): The smoke that goes
directly into the air from the burning end of the cigarette.
Sidestream smoke has large amounts of certain noxious compounds
and continuously pollutes the air.
Smoking Attributed Mortality (SAM): The number
of deaths directly associated with smoking tobacco.
Smoking cessation: The effort to stop smoking
tobacco products. With nicotine an addictive substance, many
people find it hard to stop smoking without help. Various approaches
are available, both psychological and pharmacological.
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