The first Europeans who arrived to America saw that the natives were smoking leafs of tobacco, so they inserted this practice in Europe in the century XVI. But in the century XX this modal change because each smoker consumed more than a thousand of cigarettes in a year. The society thought that the tobacco take out stress and it didn’t have injurious efects. During the II Mundial War the doctors recommended to send cigarettes to the soldiers.
But, the scientifics don’t take a long time to realize that the Cancer lung had been increased in 1930. The experimental studios with animals’ demonstrated that lot of the chemical substances what contain the cigarettes’ smoke are cancerous.

The first measures:
• In 1964, the cigarettes’ packet included an warning.
• In 1969, this warning bolstered up until been in this way: “The Sanitation Authorities advised that the tobacco damage seriously the health”.
• In 1971, prohibited cigarettes’ publicity in radios and televisions.
• In 1970 y 1980, lot of towns and states approved laws what demanded reserved spaces for smokers in public and work places.
• In 1990, a federal law prohibited to smoke in all national flights what last at least of six hours.

Ana Claudia: This post is actually Marianela's, she couldn't post it, so I am doing that for her. Bye!