A new study provides evidence that the higher mortality rate of poorer men compared with that of wealthier men could be caused by the higher number of poor male smokers. One researcher suggested a further taxation of cigarettes as a way of pushing poorer people to quit or not begin smoking. Another researcher also aknowledged that the fact there are more poor male smokers than wealthy male smokers is indicative of the harder living conditions of the poor. For more information read the Forbes article about the study.