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Introduction Have you made a New Year’s resolution to give up smoking? It won’t be easy, but research shows that there are treatments that can really help.

Avoid fizzy drinks Carbonated drinks (including the diet variety and sparkling water) can cause your teeth to look older than they really are.

Go to rehab “Smoking is an addiction – just like being a heroin addict or an alcoholic,” says Dr Robert Lefever, founder of the Promis Centre, which treats nicotine addiction.

Your leader (November 15) says that obesity, alcohol and smoking will create a £30bn increase in NHS spending by 2020.