Ключевые слова: accountant, analysis, asleep, book, brainstorm, business, businessman, chair, computer, concentration, connection, desk, document, dreaming, education, elderly, employee, entrepreneur, exhausted, exhaustion, falling, gray hair, home, indoor, laptop, learning, male, man, mature, nap, napping, occupation, office, one person, overworked, person, reading, senior, senior adult, senior men, sitting, sleeping, sleepy, studying, technology, tired, work, working, workplace,