Ключевые слова: 3d, 3d rendering, bio, biochemistry, biogenic, biology, brain, carbon, chemical, chemistry, compound, concentration, depression, drug, education, emotion, euphoria, feeling, formula, happy, health, hormone, human, hydrogen, illustration, laboratory, man, medical, medicine, metabolism, molecular, molecule, mood, neuro, organic, pattern, physiology, school, science, scientific, sign, steroid, stress, structural, structure, substance, symbol, system, testosterone, therapy,