The authors of an interesting new study have asked and scientifically answered an important practical question:

Does reduction of the number of cigarettes smoked per day, reduce the risks of morbidity and mortality linked to the common smoking related diseases?

The unequivocal quote of the conclusions of this study is: "Smoking cessation is the only effective strategy to reduce the harm caused by tobacco smoking. This finding should lead clinicians to offer support to smokers in order to assist them to completely quit smoking."