What is Stress (biology)?
'''Stress''' is a word used in [[psychology]] and [[medicine]] to describe a condition which may be seen in [[Organism|organisms]]. ==Overview== Stress describes an organism's response to a threat or some adverse changes in its or his/her [[environment]].<ref>{{cite journal |last1= Greenberg |first1= Neil |last2= Carr |first2= James A. |last3= Summers |first3= Cliff H.|year= 2002 |title= Causes and consequences of stress |journal= Integrative and Comparative Biology |volume= 42 |issue= 3 |pages= 508–516 |doi= 10.1093/icb/42.3.508 |pmid= 21708746 |url= http://icb.oxfordjournals.org/content/42/3/508.full }}</ref> In [[psychology]], '''stress''' is a [[feeling]] of [[Emotion|emotional]] strain and pressure.<ref>{{Cite news|url=http://www.mentalhealthamerica.net/conditions/stress|title=Stress|date=2013-11-18|work=Mental Health America|access-date=2018-10-01|language=en}}</ref> Stress is a type of psychological [[pain]]. Small amounts of stress may be beneficial, but more stress can increase the risk of [[Stroke|strokes]], [[Myocardial infarction|heart attacks]], and [[Mental illness|mental illnesses]], such as [[Depression (mental illness)|depression]]<ref>{{cite book|last1= Sapolsky|first1= Robert M.| title= Why Zebras Don't Get Ulcers|url= https://archive.org/details/whyzebrasdontget0003edsapo|date= 2004|publisher= St. Martins Press|location= New York City|isbn= 978-0-8050-7369-0|pages= [https://archive.org/details/whyzebrasdontget0003edsapo/page/n543 37], 71, 92, 271}}</ref> in [[Human|humans]]. ==Types== There are different types of stress. Each type has different characteristics and symptoms.<ref>{{Cite web|last=Arooj|first=Khan|date=January 28, 2023|title=Technology tips|url=https://technologytips234.blogspot.com/|url-status=dead|archive-date=2023-01-29|access-date=2023-01-29|website=Technology tips|archive-url=https://web.archive.org/web/20230129154401/https://technologytips234.blogspot.com/}}</ref> * '''Acute:''' stress causes immediate harm in a short time span. An example of this type of stress is hav