if you smoke a pack of cigarettes a day Subjective history isn't enough -> measure it. “I few day.” “I quit a while ago.” “Not that much.” “Only socially.” #PackYears #ClinicalSkills #RespiratoryCare #NursesLife #Med Everyone is a smoker today

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However, some report that charcoal filters might also filter some of the THC in your joint or spliff

But if insulation has compressed, waterproofing has failed, or the damage affects warmth and dexterity, its time to replace them

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In a commentary published in the Canadian Medical Association Journal in 2018, researcher Crawford Moodie of the Centre for Tobacco Control Research at the University of Stirling in Scotland said that despite the prominence of warnings on cigarette packages in Canada and other countries, some smokers focus on the branding instead