Nationally, over the past decade, the percentage of adults who reported smoking at least 100 cigarettes in their lifetime and currently smoke daily on some days in the nation has been on a steady decline
Valavanidis, A., Vlachogianni, T
These include coughing, wheezing, and shortness of breath, as well as sneezing and runny nose
Even under our conservative interpretation of the data, smoking is irrefutably harmful to human health, with the greatest increases in risk occurring for laryngeal cancer, aortic aneurysm, peripheral artery disease, lung cancer and other pharynx cancer (excluding nasopharynx cancer), which collectively represent large causes of death and ill-health
The results also showed that a smoking a pack of cigarettes a day led to an average 97 mutations in each cell in the larynx, 39 mutations for the pharynx, 23 for the mouth, 18 for the bladder, and six mutations in every cell of the liver each year