Ключевые слова: abstract, anxiety, background, biology, biomedical, boy, brain, care, concept, depression, diseases, disorder, experiment, face, genetics, head, health, human, icon, ill, illness, illustration, life, man, medical, medicine, mental, mind, neutral, organism, outline, people, person, physiology, portrait, profile, psychology, research, science, serene, side, silhouette, stress, textured, therapy, tree, wood, young,