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Description
Increasing frequency of marijuana usage over the prior month was associated with increases in self-reported respiratory symptoms of bronchitis (coughing, wheezing, etc.) but not with clinically significant changes in measures of lung function as measured by spirometry

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The residue from marijuana smoke can cycle through the HVAC the system if it was running during active smoking

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It needs dedication, hard work, and the right help

Every week without smoking brings improvement
