USDA pain/distress categories is the basis for the pain/distress classification system used by most institutions.
Psychological discomfort is a general term for stress, anxiety, and depression symptoms. High levels of psychological distress can be a sign of common mental diseases like depression and anxiety disorders and are a sign of poor mental health.
Interpersonal connection issues like disagreements, illness or the death of a loved one, divorce, abuse, problems with a romantic partner, family, or parents, among others, financial challenges, environmental adjustments, moving away from home, and scholastic challenges all lead to distress.
The USDA's categories for pain and distress address pain or distress that is effectively treated with anesthetics, analgesics, tranquillizers, or other pain- or distress-relieving medications.
Learn more about distress here
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