Ключевые слова: adult, adults only, bathroom, business, businessman, caucasian, communication, concepts, constipation, defecate, diarrhea, domestic bathroom, dysentery, enzymatic digestion, hand, health, home life, human digestive system, human hand, hygiene, internet, lifestyles, male person, man, medical condition, men, mobile phone, mobile technology, morning, one man only, one person only, online messaging, people, portable computer device, privacy, public bathroom toilet, public facility, room, routine, seating, sickness, smart phone, stomach, stomachache, sunrise twilight, technology, telephone, toilet, unhealthy living, young adult,