Question

why do you think giving real fingers to smokers does not prevent them from smoking ​

Answer 1

Explanation:

Tobacco stain on fingers is frequent. However, there is scarce description of this clinical sign. We aimed to explore tobacco stain on fingers as a marker of tobacco-related disease independent of cumulative tobacco exposure, and to find behavioural and environmental characteristics associated with those stains.

It presents an increased risk for Buerger's disease, which is a form of vasculitis that inflames the blood vessels of the hands and causes both tissue damage and pain, as well as skin ulcers and the risk for gangrene (Note: It can also present as chronically cold hands, pain when moving, and limited mobility)