As a family medicine specialist, this is a question I am frequently asked. A cough is an involuntary reflex that comes from our brain when our brain senses that we need to clear out our airway (the tube that leads from our mouth to our lungs). But still, why? This can be one of many reasons.
Five years ago, Pennsylvania legislators passed the Clean Indoor Air Act, which eliminated smoking in some, but not all, indoor workplaces.