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- Stress (physiology): Pathological process resulting from the reaction of the body to external forces and conditions that tend to disturb the organism's homeostasis.
- Physiological stress: Biological consequences of the failure of an organism to respond appropriately to emotional or physical threats to its being, whether actual or imagined.
- Stress test: Graded test to measure an individual's heart rate and oxygen intake while undergoing strenuous physical exercise.
- Psychological stress: Biological reactions to any adverse stimulus, mental or emotional, that tends to disturb the organisms homeostasis, and may lead to disorders.
- Combat stress: Add brief definition or description
- Traumatic stress: An acute emotional condition associated with reactive anxiety, depression, and disturbance of conduct.
Posttraumatic stress disorder
- Posttraumatic stress disorder: Syndrome of persistent symptoms triggered by acute trauma.
- Acute posttraumatic stress disorder: The subset of PTSD in which the onset is soon after the event, and duration of the symptoms is between 1 to 3 months
- Chronic posttraumatic stress disorder: The subset of PTSD in which symptoms last more than 3 months.
- Complex post-traumatic stress: Clinically recognized condition that results from extended exposure to prolonged social and/or interpersonal trauma.
- Delayed posttraumatic stress disorder: The subset of PTSD in which symptoms develop more than 6 months after the traumatic event.
Chemistry and biology
- Oxidative stress: An imbalance between the production of reactive oxygen and a biological system's ability to readily detoxify the reactive intermediates or easily repair the resulting damage.
- Stress (linguistics): Phonological and phonetic prominence of a syllable relative to other syllables, generally involving greater pitch, length or loudness.