canadian tobacco settlement Industry Nears of Litigation Tobacco giants would pay out

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Chronic nicotine exposure leads to desensitization of nicotinic receptors, which in turn makes the receptors less responsive to nicotine upon binding, attenuating the cognitive-enhancing effects over time

Notes and references Updated June 2018 * National and state-level prevalence numbers reflect the most recent data available

The FY2026 tabular places four Excludes1 notes at the F17 category level: history of tobacco dependence (Z87.891), tobacco use NOS (Z72.0), tobacco use during pregnancy/childbirth/puerperium (O99.33-), and toxic effect of nicotine (T65.2-)

Important information: This does not necessarily equal a 95% reduction in risk