Ключевые слова: analysis, angry, anxiety, bad, care, caucasian, chemical, chemist, chemistry, confused, depressed, depression, disappointed, doctor, exam, exhausted, experiment, expression, frustration, hand, head, headache, health, job, lab, laboratory, mad, man, medical, medicine, pressure, problem, professional, research, sad, sadness, science, scientific, scientist, solve, stress, technology, test, tired, tube, unhappy, upset, work, worried, young,