therapy – n. the treatment of physical or mental illnesses

remind – v. to make (someone) think about something again : to cause (someone) to remember something

pandemic – n. an occurrence in which a disease spreads very quickly and affects a large number of people over a wide area or throughout the world

plague – n. a very serious disease that is spread especially by rats and that killed many people in the Middle Ages

cholera – n. a serious disease that causes severe vomiting and diarrhea and that often results in death

psychology – n. the science or study of the mind and behavior

trauma – n. a very difficult or unpleasant experience that causes someone to have mental or emotional problems usually for a long time

perceive – v. to notice or to become aware of something

relevant – adj. relating to a subject in an appropriate way