There are many kinds of stress, and are defined differently within different fields of study. In language, and speech, stress is an emphasis on a certain syllable of a word. read more
If we didn't have posttraumatic stress disorder, then soldiers would probably not feel a delayed stress reaction after a tour into combat, and would not experience some of the intense symptoms of PTSD, like diminished hedonic capacity, feelings of alienation, or memory difficulties. read more