Ключевые слова: adult, business, businessman, communication, computer, connection, corporate, dark, desk, device, digital, elderly, entrepreneur, evening, gray, grey, hair, indoor, internet, job, laptop, late, light, male, man, manager, mature, modern, network, night, notebook, office, old, online, overtime, person, professional, senior, sitting, tablet, technology, typing, using, wireless, work, working, working late, workplace,