psychiatric symptom stress http://purl.bioontology.org/ontology/MEDDRA/10042209 http://purl.bioontology.org/ontology/SNOMEDCT/73595000 https://en.wikipedia.org/wiki/Psychological_stress https://www.wikidata.org/wiki/Q3500368 A feeling of strain and pressure. Stress is a type of psychological pain. Small amounts of stress may be desired, beneficial, and even healthy. Positive stress helps improve athletic performance. It also plays a factor in motivation, adaptation, and reaction to the environment. Excessive amounts of stress, however, may lead to bodily harm. Stress can increase the risk of strokes, heart attacks, ulcers, and mental illnesses such as depression. psychological stress state of stress