The suffix "-pnea" relates to which physiological process?

The suffix "-pnea" specifically denotes a relationship to breathing or the respiratory process. It originates from the Greek word "pnoia," which translates to breathing. This suffix is commonly used in medical terminology to describe various conditions or states of respiration. For example, terms like "apnea" refer to a cessation of breathing, while "dyspnea" indicates difficulty in breathing. Recognizing this connection to breathing helps solidify the importance of "-pnea" in understanding respiratory health and related medical terms.