Ключевые слова: 30s, aware, back, benefit, body, calm, casual, caucasian, chair, clothes, corporate, demonstration, design, employee, environment, ergonomic, focused, furniture, health, healthy, human factors, informal, life style, lifestyle, long working hours, male, man, office, performance, position, posture, productivity, profession, professional, profile, proper, real, seated, serious, showing, simple, sitting, spine, straight, strain, well being, white, worker, working, young,