1) Sources of anxiety 
(Learning Modules / Psychology / Stress management) Characteristics of the environment which cause stress.
Type: Term Pronunciation: stres′ŏrs, -ōrs Definitions: 1. Any urge, force, or pressure (deleterious force) brought to bear on a person, bodily system, or governmental or private health care system or structure, such that the entity subject to such duress reacts in a manner that either perverts or transmutes its normal function. 2. I...
Physical, chemical, or biological entities that can induce adverse effects on ecosystems or human health. 
Circumstances or events that are psychologically or physically demanding.