Ключевые слова: ache, adult, background, bad, blue, brain, business, businessman, character, concept, depression, design, emotion, expression, face, failure, frustrated, frustration, head, headache, health, human, icon, ill, illness, illustration, isolated, male, man, manager, medical, migraine, office, pain, people, person, problem, sad, sick, stress, stressed, symbol, symptom, thinking, unhappy, work, worker, worry, yellow,