Definitions for "STRESSORS"
Physical, chemical, or biological entities that can induce adverse effects on ecosystems or human health.
(paraphrased from Reber) Stress: A state of psychological tension produced by the kinds of forces or pressures that, when applied to a system, causes significant modification of its form, usually deformation or distortion. Stress is the effect, while stressor is the causal agent.
anything that can cause stress on the body, which can be psychological, environmental, physical, etc.
Keywords:  occasions, event, response, person
an event that occasions a stress response in a person.