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A 2015 study by the Institute of Medicine projects that raising the smoking age to 21 nationwide would lead to "approximately 249,000 fewer premature deaths, 45,000 fewer deaths from lung cancer, and 4.2 million fewer [years of life lost]." That's a lot of lives that can be saved

There are some quality measures (i.e, testing for chemicals, consistency) within the industry but nothing close to regulations

To test this, the researchers exposed mice to cigarette smoke, and then isolated some of these specific white blood cells from tissue near their lungs

Philip Morris claims this cuts users exposure to the carcinogens created when tobacco is burned, and that it could save the lives of smokers