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In her presentation to the European Respiratory Society International Congress in Milan, Italy [1], Dr Siyu Dai, who is an assistant professor in the School of Clinical Medicine, Hangzhou Normal University, and also an honorary postdoctoral researcher in the department of paediatrics, The Chinese University of Hong Kong, said: Our study shows that smoking status and cigarette quantity can result in the shortening of leucocyte telomere length, which is an indicator of tissue self-repair, regeneration and ageing

Cigarette smoke contains more than 6,000 chemicals, about 100 of which have been classified by public health authorities as harmful or potentially harmful

Wei, D., Nielsen, F., Karlsson, H., Ekberg, L., & Dalenbck, J

Smokers' teeth might become yellow or brown from smoking stains, especially after prolonged nicotine use