Ключевые слова: ache, anxiety, background, brain, burnout, business, cephalalgia, chronic, concept, conceptual, depression, design, desperate, diagnosis, disease, disorder, distress, exhausted, exhaustion, fatigue, frustration, general, health, idea, information, insomnia, letter, medicals, medicine, mental, message, neurology, note, pain, patient, person, physician, pills, problem, psychological, sleepy, statement, stress, symbol, text, therapy, typography, wooden, word,