Also this week, in findings that Curtin University's Mike Daube described in The Age as «one of the most important
papers on tobacco in recent years», a US study published in the Journal of the National Cancer Institute found that
cigarette filters have increased the risk of lung cancer from smoking.
The
paper reported that the
filters, which were introduced in the 1960s to dilute smoke with air and theoretically reduce the amount of tar inhaled, actually increase the harms of smoking because they cause the
cigarette to burn more slowly, thus allowing more time for toxic components to be released.