professionals draw a distinct line between mucus and phlegm. Mucus is a broad term for the slippery fluid produced by mucous membranes throughout the body, including the respiratory, digestive, and reproductive systems. It acts as a lubricant to keep moist tissues from drying out. Phlegm, on the other hand, is a specific type of mucus produced by the respiratory system, particularly the lungs and lower airways. It is typically thicker and stickier than normal mucus because it is actively working to trap and remove harmful particles and infections from the
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