how long till chewing tobacco causes cancer Health effects associated with tobacco: a Burden of Proof study Tobacco Use and Oral Health:

Because changes are also possible at any time.

Glucose is broken down and oxidized into a substance called pyruvate, which produces lactate at a rate so rapid your tissues can not break it down fast enough

In France, these indications of the so-called nicotine, tar and CO content disappeared in 2016 when plain packaging was introduced for all tobacco products, because studies had shown that they misled consumers about the real content of these substances in cigarettes

Theres little mention of how it helps them feel meaningfully connected to others, provides genuine relief after a long day, or brings sustained enjoyment or laughter