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Tobacco was originated in America,the Indians found materials which can excite the nerve system within it,the Indians would inhale the smoke during tribal council and other sacred activities,then it was introduced into Europe by the Spanish colonists.When the Spanish sailors...

After studying the harm of secondhand smoke, experts pointed out that six of the eight major causes of human death are related to smoke or second-hand smoke, including ischemic heart disease, cerebrovascular disease, lower respiratory tract infection, chronic obstructive pulmonary...