tobacco use can be harmful to Smoking: Effects, Risks, Diseases, Quitting & Solutions It's Never Too Late to

Teeth may begin to move or shift, and you may experience: Bad breath Unpleasant taste in the mouth Red, swollen, painful gums A change in the way the teeth close when biting If left untreated, gum disease can eventually lead to tooth loss Diabetes Bleeding or swollen gums can be a warning sign of type 1 or type 2 diabetes

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This has been going on so long, says Evanshaw

However, the data needs to be treated with some caution, because: this was a small study of just 69 users success was measured at just 12 weeks (we know that many quitters revert to smoking after 12 weeks) Source : Fargestrom 2013 Success rates with ecigarettes do seem to back the data up - for example another small study by Professor Polosa found that over 50% of smokers given ecigs managed to stop or reduce nicotine usage in a three month period