Ключевые слова: air hunger, airways, anemia, anxiety, breathing, care, cause, circulatory, closing, condition, diagnose, difficulty, discomfort, disease, disorder, dyspnea, effect, emphysema, exhaling, fatigue, healthy, heart, high fever, illness, inadequate, infection, inhaling, lungs, medical, normal, passages, problem, pulmonary, rate, respiratory, resting, securing, serious, severe, signs, strenous, syptoms, tightening, vessels,