North Africa, region of Africa comprising the modern countries of Morocco, Algeria, Tunisia, and Libya. North AfricaEncyclopÃ¦dia Britannica, Inc.The geographic entity North Africa has no single accepted definition.
A Stressor is anything (physical or psychological) that produces stress (negative or positive) is considered a stressor.
Two broad categories of stressors. A stressor is anything that causes the release of stress hormones. There are two broad categories of stressors: Physiological (or physical) stressors and Psychological Stressors.