GARDINER: Look, we've got plenty of research
Tobacco-related cancers and prevention Cancers caused by smoking in Europe Tobacco smoking is the major preventable cause of cancer
Helland IB, Reseland JE, Saugstad OD, Drevon CA
27 Studies measuring biomarkers of the dangerous substances in tobacco smoke (see Section 12.5.6) find that, compared to quitting completely, smokers who cut down still have relatively high levels of biomarkers of oxidative stress (an imbalance of free radicals and antioxidants in the body) such as glutathione 28 and other metabolites such as thiocyanate, 29 TNE-2, NNAL, NNN, 2-Fluorene, HPMA, CYMA, and MHB3
Early healing starts within weeks, but the timeline depends on how advanced the gum disease is