Ключевые слова: adult, anatomical, anatomy, apnea, asleep, bed, bedroom, biological, biology, body, breath, breathing, colorful, design, diagram, disease, disorder, drawing, education, educational, flat, hand drawn, health, healthy, human, illustration, insomnia, internal, isolated, loud, male, man, medical, medicine, night, noise, people, person, poster, problem, respiratory, science, sleep, sleep apnea, snore, structure, tired, vertebral column, white background,