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A video explaining what is in a cigarette and what cigarettes do to the body

A commercial about the dangers of second-hand smoke, socio-cultural influence of family on attitudes to smoking and how smoking can harm you.

A documentary outlining the dangers of smoking - the physical effects on the body and the risks associated with smoking

An essential nutrient is a nutrient that the body cannot synthesize on its own -- or not to an adequate amount -- and must be provided by the diet. These nutrients are necessary for the body to function properly. The six essential nutrients include carbohydrates, protein, fat, vitamins, minerals and water.