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The issue could also be damaged pipes that are cracked or collapsed, or blocked vent pipes that cause slow drains and gurgling
Related Stories Proactive telehealth program helps cancer patients quit smoking Herbal cigarettes are not safer than regular tobacco alternatives Violence exposure linked to increased tobacco use among teens For example, macrophages, when activated, release interleukin-1 (IL1), which leads to the stimulation and proliferation of helper-T cells (CD4+), which themselves activate killer-T cells (cytotoxic effector CD8+)
This limits the extent to which they can be considered a suitable control condition where experimental and control conditions are closely matched (e.g., due to familiarity)
In addition, coughing is more common among smokers compared with nonsmokers, and severe coughing can impact quality of life of the smokers
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