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Sheet - How Tobacco Causes Diseases| It is worth having a simple
model of tobacco-caused diseases in mind, as there are so many
of them that it may cause confusion. Tobacco diseases are best
seen as the inhalation of toxic substances, some of which act
immediately, and some of which have effects in the longer term.
1. The Toxic Ingredients 2. Input Cancers These are caused as
the smoke goes in to the body Airway damage is caused by
poisoning of airway lining cells with carbon monoxide, tar and
nicotine and deposition of soot particles. The smooth muscle in
the airways is also contracted by nicotine. This leads to an
inability to remove secretions with blockages causing recurrent
infections leading to chronic bronchitis and trapping of air,
which is called em