It causes oral cancer and all sorts of other health problems, but that isnt the only thing chewing tobacco does
Nicotine is poisonous, and e-cigarette use or misuse can lead to nicotine poisoning via ingestion, inhalation, or absorption of nicotine via the skin or eyes
Certain systemic diseases like diabetes, liver disease, or kidney problems can also cause distinct odours in the breath
To be fair, to a certain extent, it worked most of the smog stayed at the back, leaving only the smokers back there gasping for breath
However, in the nicotine level chart, a measurement designed to read how much nicotine one actually receives while using the product, Skoal's varieties ranged from average (8th) to poor (2nd to last) depending on flavor and texture