You'll see (or smell) where the bad breath is coming from
Varenicline is used for 12 weeks, but again, if you have successfully kicked the habit, then you can use the drug for another 12 weeks to reduce smoking relapse risk
We have previously reviewed that cigarette smoke and its active ingredients can suppress mucosal cell proliferation and induce apoptosis during ulceration and the healing processes (8,24)
There have been rare incidents of E-cigarettes or vapes exploding and seriously injuring people
And I think that's a perfect example of why it's so important to really do the best we can to try and get to either adjustment for confounding, or doing these kinds of studies like the Mendelian randomisation analysis, to get at whether or not these associations are causal
Better yet, make your own by mixing vinegar, water and some drops of your favorite essential oil (orange, lemon, lavender or eucalyptus) in a spray bottle