Calgary Dream Centre
4510 Macleod Trail SW Calgary AB T2G 0A4 (403) 243-5598

How Addiction Affects Mental Health

A lady in a white knitted shirt is covering her face with her both hands and a distorted shadow of her screaming.

Addiction and mental health are delicately intertwined. People struggling with addiction can often experience diminished mental health, particularly when they feel like they have no resources or a support system to turn toward.

Understanding how addiction to drugs or alcohol can lead to mental health issues and how to recognize symptoms of mental illness is crucial to helping people get the help they need to overcome their addiction.

Addiction & the Brain’s Reward System

Addiction may begin with the use of substances like drugs or alcohol. Some individuals may be addicted to a specific type of alcohol or a drug like heroin or opioids. The key to understanding addiction is grasping how the brain’s reward system works.

When we do something that gives us pleasure, our brain releases a hormone called dopamine. Dopamine is sometimes referred to as the “feel-good” hormone, providing a sense of pleasure and euphoria when someone does something that gives them pleasure.

From an evolutionary standpoint, the brain’s reward system tells us when we’re doing things we need to survive. 

Changing the Brain

Substance use can drastically change the brain’s reward system. As a person becomes increasingly reliant on alcohol or drugs, their brain needs more exposure to that drug to feel the reward associated with dopamine.

When a person first uses a substance, they may feel a “high” with feelings of euphoria associated with their use. The issue with substances is how they deplete the brain’s ability to feel pleasure.

Addiction develops by changing the brain’s relationship with dopamine. Not only does the brain rely on a substance to generate dopamine, but each time it experiences the high associated with the substance, it diminishes gradually.

This numbing effect is challenging to overcome and can impact a person’s mental health in profound ways.

Mental Health & Addiction

Addiction can lead to serious long-term side effects when it comes to a person’s mental health. The diminished ability to feel joy associated with dopamine can lead to:

  • A negative outlook on life
  • Sudden mood swings
  • Depression & anxiety
  • Relationship challenges
  • Loss of motivation 

As these symptoms progress, they can affect a person’s life in profound ways. Their relationship with their loved ones may become strained, and mental health challenges can lead to other issues beyond substance abuse.

Infographic showing symptoms of drug related psychosis mainly paranoia, delusions, hallucinations and confusion.

Drug-Related Psychosis

Psychosis refers to seeing the world differently from others and having difficulty distinguishing between what is real and what is not. Drug use can lead to psychosis like hallucinations and delusional thinking.

A person experiencing a drug-related psychotic episode may experience paranoia, leading to behaviour associated with bipolar disorder or schizophrenia, such as aggression, confusion, or distrust.

Drug-induced paranoia can result from many different drugs, particularly hallucinogens. These drugs may include:

  • Cannabis
  • Cocaine
  • Amphetamines
  • Methamphetamines
  • Psychedelics
A silhouette of a man sitting in a corner of a dark room.

Drugs & Current Mental Health Challenges

If a person already suffers from mental health challenges like depression, anxiety, or bipolar disorder, drug use can exacerbate them.

For example, some people may use cannabis to relax and feel less anxious. Others may depend on alcohol to help them loosen up.

These substances can also have the opposite effect on people. Diminished dopamine delivery means drugs can make a depressed person even more depressed or an anxious person more anxious.

Regulating drug and alcohol use is key—which is where understanding addiction helps. Educating people on the risks associated with substance use is essential, especially for those who experience mental health challenges. People with existing mental illnesses are at an even higher risk of experiencing addiction.

Providing Help

Calgary Dream Centre provides individuals struggling with addiction a place to access resources and care to begin their recovery journey. Programs like housing and individualized recovery plans are just a few of the resources we put in place to help people. Get in touch with us to learn more. If you or someone you know is struggling with addiction, please contact us as soon as possible. The journey to recovery can be lonely—but the dedicated team at Calgary Dream Centre is here to help.

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  • Written by Jim Moore

    CEO/Executive Director, Jim Moore is a founding member of the Calgary Dream Centre. His passion and drive to see lives changed has guided the organization to where it is today. Jim entered the non-profit world after many years of leadership in business, banking, real-estate, and church ministry. During that time he served on a number of boards and his career moved him across Canada from Vancouver to Toronto, and back to Calgary, where he helped found the Calgary Dream Centre. He was president of the Calgary Real Estate Board CREB, and past president of Canada Trust Real Estate Division Canada.

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    The Calgary Dream Centre acknowledges with humble gratitude that our organization is located on the traditional territories of the Blackfoot Confederacy (Siksika, Kainai, Piikani), the Tsuut’ina, the Iyarhe Nakoda Nations, the Otipemisiwak Métis Government of the Métis Nation within Alberta District 6, and all people who make their homes in the Treaty 7 region of Southern Alberta.