Smoking and depression

A U.S. study of 8,556 people looked into the links between tobacco smoking and depression. The researchers found that the risk of depression was increased by 41% in smokers compared to non-smokers. An increase in tobacco use was also associated with a lessening of physical activity. Interestingly those who had given up tobacco more than a decade previously had a lesser probability of developing depression than those who had never smoked.

You can find out more about this research at

http://psychcentral.com/news/2008/04/25/smoking-ups-risk-of-depression/2190.html