WASHINGTON — It may be riskier on the lungs to smoke cigarettes today than it was a few decades ago — at least in the U.S., says new research that blames changes in cigarette design for fueling a certain type of lung cancer.
It’s not the first time that scientists have concluded the 1960s movement for lower-tar cigarettes brought some unexpected consequences. But intriguingly, this study found the increase in a kind of lung tumor called adenocarcinoma was higher in the U.S. than in Australia, even though both countries switched to so-called milder cigarettes about the same time.
"The most likely explanation for it is a change in the cigarette,” said Dr. David Burns of the University of California, San Diego. He cited a difference: Cigarettes sold in Australia contain lower levels of nitrosamines than those sold in the U.S.
But that’s circumstantial evidence that requires more research, he acknowledged
by the associated
It’s not the first time that scientists have concluded the 1960s movement for lower-tar cigarettes brought some unexpected consequences. But intriguingly, this study found the increase in a kind of lung tumor called adenocarcinoma was higher in the U.S. than in Australia, even though both countries switched to so-called milder cigarettes about the same time.
"The most likely explanation for it is a change in the cigarette,” said Dr. David Burns of the University of California, San Diego. He cited a difference: Cigarettes sold in Australia contain lower levels of nitrosamines than those sold in the U.S.
But that’s circumstantial evidence that requires more research, he acknowledged
by the associated
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