Complex sentence: According to another source, coryza was an ancient Greek word denoting a fool; we use the term for a cold in the head, but the two are really synonymous; the ancient Romans advised their patients to clean their nostrils and thereby sharpen their wits.
Split into simpler sentences: According to another source, coryza was an ancient Greek word denoting a fool; we use the term for a cold in the head, but the two are really synonymous. The ancient Romans advised their patients to clean their nostrils and thereby sharpen their wits.