Stress (biology)

Stress is a word used in psychology and medicine to describe a condition which may be seen in organisms.

Stress describes a living thing's response to a threat or some adverse change in its environment.^[1] In psychology, stress is a feeling of emotional strain and pressure.^[2] Stress is a type of psychological pain. Small amounts of stress may be beneficial, but more stress can increase the risk of strokes, heart attacks, ulcers, and mental illness, such as depression^[3] in humans.

1. ↑ Greenberg, Neil; Carr, James A.; Summers, Cliff H. (2002). "Causes and consequences of stress". Integrative and Comparative Biology. 42 (3): 508–516. doi:10.1093/icb/42.3.508. PMID 21708746.
2. ↑ "Stress". Mental Health America. 2013-11-18. Retrieved 2018-10-01.
3. ↑ Sapolsky, Robert M. (2004). Why Zebras Don't Get Ulcers. New York City: St. Martins Press. pp. 37, 71, 92, 271. ISBN 978-0-8050-7369-0.