The causes of substance use are actually similar to what makes mood disorders develop in the first place. These similar causes, of course, do not include relief from anxiety or mood disorders themselves. People may need relief from their negative thought loops or bodily inflammation.
Many traumatic incidents can cause the onset of substance abuse. Substance abuse is an attempt to find calmness in mind, body, and spirit. Drugs that bring on a sense of euphoria or dissociation from reality only bring about a temporary, illusory reduction of symptoms.
Feelings of abandonment, grief, fear, anger, and hurt result in addiction. The addict does not dig deeper or releases and feels this pain. They instead numb the pain and hurt.
This can be a conscious or unconscious process. Most of the time, the pain an addict seeks relief from is unconscious. The addict may not be aware of the more serious emotional damage behind their thoughts, behaviors, and motivations.
The feeling of something missing, inability to process emotions, or apathy can make someone hurting reach for drugs instead of feeling their pain. Approaching your hurt through a means to love yourself has a profound effect on treating disorders. Energy is emotions in motion. Repressing or suppressing emotions leads to both a build-up in pent-up energy or unreleased emotions. Anxiety is a building up of emotions.
Repressing or suppressing emotions leads to drug use to numb the effect from an overwhelming amount of emotional turmoil in the body.