Ключевые слова: 1, academic, book, bookshelf, caucasian, cognition, college, depressed, desk, education, exam, exhausted, frustration, hair, head, homework, information, intelligence, learn, learning, library, literature, male, man, notebook, person, pile, portrait, problem, read, research, sad, school, sitting, sleepy, stress, stressed, student, studying, table, teenage, textbook, thinking, university, work, worry, young,