There are 50 known cancer causing substances present in second hand smoke.

A full strength nicotine patch releases a maximum of 22 milligrams of nicotine over a 24 hour period.

Smoking shortens the life of a female smoker by 15 years on average.

Smoking shortens the life of male smokers an average of 13 years.

It takes 12 hours after quitting for the carbon monoxide in the blood to return to normal levels.

An estimated 10 million cigarettes are sold every minute.

Nicotine and its by products remain in the bloodstream for up to 4 days after quitting smoking according to the American Cancer Society.

Lung function and circulation begins to improve after not smoking for 2 months.

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