tobacco company executives testify before congress Testimony – The Center for the Study of and Society Henry Waxman and Big Tobacco

A 2013 study from researchers at the University of Rochester Medical Center found that smoking tobacco can alter the expression of clock genes in both the lungs and the brain, thus ruining a restful night's sleep

While vaping may produce less tar than cigarettes, nicotine still: Affects blood flow Contributes to gum inflammation Can cause dry mouth And vapor residue can still interact with aligner surfaces

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3) Dry Cartridge HVAC systems for larger areas Eliminating tobacco smoke odors on a larger scale requires special treatment