Understanding Substance Use Disorder:
Causes, Symptoms, and Pathways to Treatment

Are you or a loved one struggling with substance use disorder? Learn about the causes, symptoms, and treatment options available at Longview Recovery.

Table of Contents

The Growing Impact of Substance Use Disorder

If you or someone you love is struggling, know this: there’s nothing wrong with needing help,and there’s compassionate and effective support available to guide you through the process.
While substance use disorder (SUD) can look different from person to person, it’s more than just a pattern of using drugs or alcohol. It’s a condition that deeply impacts physical health, mental well-being, and relationships.
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Alarming Statistics

According to the Substance Abuse and Mental Health Services Administration [SAMHSA], over 46 million people in the U.S. met the criteria for SUD in 2021, yet over 91% did not receive treatment.1
Recent data from the World Health Organization (WHO) indicates that harmful substance use is responsible for over 3 million deaths globally each year.2
These numbers highlight a growing need for awareness, prevention, and care.

Why Understanding Substance Use Disorder Matters

Understanding substance use disorder is one of the most important steps toward recovery. Whether you’re concerned about your own health, helping a loved one, or just want to be better informed, recognizing how SUD develops – and how it can be treated – makes a real difference.
By expanding our knowledge, we can reduce stigma, promote early intervention, and support healing at every stage.

SUD Treatment: An Overview

What Is Substance Use Disorder?

Substance use disorder is a medical condition that affects a person’s brain, behavior, and ability to control the use of drugs or alcohol.
SUD is diagnosed when someone continues using substances despite significant problems related to their use. These may include health issues, trouble at work or home, or an inability to stop despite trying.
To meet the criteria for substance use disorder, individuals must display at least two of the 11 symptoms listed in the DSM-5 within a 12-month period. These symptoms include things like intense cravings, withdrawal, giving up responsibilities, and needing more of the substance to feel its effects.3

SUD: Explained

Substance Use, Addiction, or Dependence?

It’s helpful to understand the differences between substance use, dependence, and addiction, as these are all terms that are used interchangeably but mean different things.
The differences include:
  • Substance use refers to any use of drugs or alcohol, which may be casual or occasional.
  • Dependence involves physical or psychological reliance, where stopping causes withdrawal symptoms.
  • Addiction typically describes compulsive use despite clear negative consequences and a loss of control.
SUD can include elements of both dependence and addiction, but not everyone who struggles with substances develops an SUD. The condition exists on a spectrum, ranging from mild to severe.

Myths Surrounding Substance Use Disorder

There are several common misconceptions surrounding substance use disorder that fuel stigma and prevent people from getting the help they need. Recognizing substance use disorder for what it is—a treatable condition—can reduce unnecessary shame and open doors to healing.
Here is the truth behind two of the most widespread false beliefs:

Myth: Someone has to “hit rock bottom” to change.

Truth: In reality, early support can prevent further harm.

Myth: People struggling with SUD simply don’t care or aren’t trying hard enough.

Truth: Recovery takes more than motivation—it often requires medical care, mental health support, and community connection.

At Longview Recovery, we’re committed to reducing stigma through education, support, and person-centered treatment. By replacing judgment with empathy, we help create a safe space for recovery to begin.

Causes and Risk Factors of Substance Use Disorder

Substance use disorder isn’t a condition that develops for a singular reason. It’s often the result of many factors coming together – some we’re born with, others shaped by life experiences.
Understanding these risk factors helps us move away from blame and toward meaningful solutions.

Biological Factors

Genetics can play a big role in who develops a substance use disorder. People with a family history of addiction may have a higher risk due to inherited traits that affect how the brain responds to substances.

Brain chemistry also matters, as substances can hijack the brain’s reward system, making people feel temporary relief or pleasure. Over time, the brain may come to depend on those substances to feel normal.

Environmental Factors

Where and how someone grows up can also influence the likelihood of developing a substance use disorder.
Common environmental risk factors include:
  • Early exposure to drugs or alcohol in the home
  • Peer pressure or social circles that normalize substance use
  • Lack of parental involvement or support
  • Poverty, unstable housing, or limited access to healthcare
  • Exposure to violence, abuse, or neglect
Trauma – especially during childhood – can also have a lasting effect. Many people use substances to cope with emotional pain they haven’t been able to process or express.

Psychological Factors

Mental health challenges and SUD often go hand-in-hand. People struggling with depression, anxiety, post-traumatic stress disorder (PTSD), or other conditions may turn to substances as a form of self-medication. This cycle can make both issues worse over time.
Other psychological risks include:
  • Difficulty managing stress
  • Low self-esteem
  • Impulsive behavior
  • Poor coping skills
No single factor causes substance use disorder, but when multiple risk factors are present, the chances increase.
At Longview Recovery, we take time to understand the full picture so that each person’s treatment path addresses the root causes, not just the symptoms.

Common Types of Substance Use Disorder

Substance use disorder can develop from many different types of substances, including both prescription medications and illicit drugs.
Each substance affects the brain in unique ways, and some carry a higher risk for dependency and long-term health consequences.
Some of the most common substance use disorders include:

Alcohol

Alcohol is widely available and socially accepted, but chronic use can lead to serious health risks. It is a central nervous system depressant that alters mood, coordination, and decision-making.
Long-term alcohol misuse can lead to physical health concerns and disruptions in personal and professional life.

Alcohol Use Disorder (AUD)

Opioids

This group includes prescription pain medications such as oxycodone and hydrocodone, as well as illegal drugs like heroin and synthetic opioids like fentanyl.
Opioids are known for their powerful pain-relieving effects and high potential for misuse. The ongoing opioid crisis has raised national concern due to rising rates of overdose and accidental death.

Stimulants

Stimulants increase energy, alertness, and heart rate. Common examples include:
  • Cocaine
  • Methamphetamine
  • Prescription ADHD medications (like Adderall and Ritalin)
Though some stimulants are used medically, misuse can lead to long-term strain on the brain and heart.

Depressants and Sedatives

These drugs slow brain activity and are often prescribed for anxiety or sleep disorders. Some common examples include:
  • Benzodiazepines (such as Xanax or Valium)
  • Barbiturates
When used improperly or combined with other depressants like alcohol, they can pose serious risks, especially with long-term use.

Hallucinogens and Synthetic Substances

Drugs like LSD, MDMA (ecstasy), and synthetic cannabinoids (“spice”) fall into this category. These substances distort perception and can affect mood, behavior, and sensory experience.
While some are taken recreationally, repeated use may lead to psychological distress and erratic behavior.4

Signs and Symptoms of Substance Use Disorder

Recognizing the signs of substance use disorder can be life-changing. While symptoms may vary depending on the person and the substance, many common patterns show up across different situations.

Physical Symptoms

Physical signs are often the most visible, especially during active use or withdrawal. While not everyone shows all of these, some of the most common include:
  • Sudden weight loss or gain
  • Bloodshot eyes or changes in pupil size
  • Unusual body odors (alcohol, chemicals, smoke)
  • Tremors, slurred speech, or poor coordination
  • Frequent nosebleeds (common with snorted substances)
  • Marks on the skin or arms from injection use
  • Constant fatigue or unusual bursts of energy

Behavioral Symptoms

Changes in daily habits and social interactions are also key warning signs that someone may be struggling with substance use disorder. Some behavioral signs include:
  • Avoiding responsibilities at work, school, or home
  • Losing interest in hobbies or friendships
  • Showing sudden changes in mood or personality
  • Becoming secretive, defensive, or withdrawn
  • Having frequent financial problems or stealing to support substance use
  • Taking higher doses
  • Trying and failing to cut down or quit

Psychological Symptoms

Mental and emotional changes can be harder to spot, but they’re just as important. These may include:5
  • Anxiety, depression, or mood swings
  • Increased irritability or aggression
  • Paranoia or hallucinations (especially with stimulants or hallucinogens)
  • Poor memory or concentration
  • Feeling disconnected or numb
  • Using substances to cope with stress or trauma
At Longview Recovery, we believe that recognizing the problem is the first step in supporting long-term recovery – not just for the individual, but for the whole family.
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The Impact of SUD on Individuals and Society

Substance use disorder can quietly erode a person’s quality of life – physically, mentally, and socially.6
While the challenges are deeply personal, the ripple effects are felt far beyond the individual.

Long-Term Physical Strain

The longer substance use continues, the more strain it places on the body. Different substances can contribute to:
  • Organ damage, particularly to the liver, heart, and lungs
  • Increased risk for certain cancers and chronic illnesses
  • Nutritional deficiencies and weakened immune function
  • Sleep disruption and chronic fatigue
Even when someone appears physically healthy, long-term use can cause hidden damage that may be permanent or take time to reverse.

Emotional and Cognitive Struggles

Living with substance use disorder often brings emotional exhaustion. While co-occurring mental health challenges are common, SUD alone can lead to:
  • Difficulty regulating emotions or handling conflict
  • Memory and attention problems
  • Emotional detachment from people and responsibilities
  • A growing sense of hopelessness or shame
These changes can make it harder for individuals to recognize how much support they truly need.

Social and Community Effects

SUD can create distance in relationships and disrupt social structures. Communities may also experience:
  • Increased healthcare costs and emergency service use
  • Higher rates of homelessness and unemployment
  • Safety concerns tied to unsafe substance use and crime
  • Missed opportunities in school, work, and community engagement
Understanding these broader impacts help reduce stigma by shifting the conversation from blame to compassion – an approach we value deeply at Longview Recovery.

Treatment Options for Substance Use Disorder

There’s no one-size-fits-all approach to treating substance use disorder.
At Longview Recovery, we offer a variety of evidence-based options tailored to each person’s needs, goals, and personal history.

Detoxification

The first step for many people is detox, where substances are safely cleared from the body. We offer both medical detox for those who need clinical monitoring and sub-acute detox in a more supportive, non-hospital setting.
This stage often includes holistic methods like nutrition support, hydration, and rest to ease the process.

Inpatient Drug Rehab

Our inpatient rehab offers a structured and immersive setting where individuals live on-site while receiving daily therapy and support.
Clients can enjoy peaceful outdoor environments that offer fresh air, opportunities for physical activity, and time immersed in nature. These outdoor experiences support stress reduction, elevate mood, and build resilience, all of which are essential elements of long-term, meaningful recovery.
Our inpatient program also includes practical life skills training in areas such as communication, stress management, financial planning, and time management, empowering individuals to rebuild their lives with confidence and purpose.

Outpatient Treatment

For those who need flexibility, our outpatient programs allow clients to maintain work or family responsibilities while continuing treatment during the day. They are perfect for those transitioning from inpatient or residential care who still need ongoing support.
Some outpatient programs we provide include:

Partial Hospitalization Program (PHP)

Our PHP offers a comprehensive, flexible treatment option that combines structured care with personal independence.
Key features of our PHP include:
  • Full-Day, Structured Treatment: Intensive daily therapy with a focus on mental health and recovery.
  • Flexibility to Return Home or to Sober Living: Ideal for those who need a balance of support and independence.
  • Medical Oversight and Intensive Therapy: Includes both medical supervision and therapeutic support to promote recovery.
  • Focus on Stability: Aims to build emotional and mental stability while building independence in a safe environment.

Intensive Outpatient Program (IOP)

Our IOP is designed for individuals who need part-time, flexible treatment while balancing daily responsibilities.
Key features of our IOP include:
  • Flexibility to Fit Your Schedule: Allows you to manage work, school, or family life while attending treatment.
  • Relapse Prevention Focus: Prioritizes strategies to avoid setbacks and maintain progress in recovery.
  • Life Skills Development: Emphasizes learning coping mechanisms and building skills for daily living.
  • Maintaining Daily Routines: Helps you maintain a regular routine while continuing to heal and progress in recovery.

Medication-Assisted Treatment (MAT)

Our MAT program combines FDA-approved medications with counseling and therapy to support long-term recovery. Medications like buprenorphine or naltrexone can reduce cravings and prevent relapse, especially for opioid and alcohol use disorders.

Therapy and Counseling

We believe that lasting change begins with understanding the patterns and triggers that lead to substance use.
We use a wide range of therapeutic approaches, including:
  • Cognitive Behavioral Therapy (CBT)
  • Dialectical Behavior Therapy (DBT)
  • Trauma therapy for those with unresolved emotional wounds
These therapies help individuals understand the “why” behind their substance use, build healthier thought processes and coping skills, and ultimately reshape daily habits.

Support Groups and Aftercare

Recovery doesn’t stop after treatment ends. We help clients stay connected through:
  • 12-Step groups or alternative peer support options
  • Relapse prevention planning
  • Aftercare support focused on long-term stability
We also believe recovery should feel meaningful. Our programs include outdoor experiences like hiking, fishing, and fitness activities.
Whether it’s a day on a pontoon boat or a walk in the hills, movement and nature play an important role in restoring a sense of balance and joy.

Prevention Strategies for Substance Use Disorder

While treatment is essential, preventing substance use disorder before it starts – or stopping it from progressing – is just as important.
Prevention efforts don’t have to be complicated. Small actions in the right environment can make a powerful difference. Some prevention strategies you can implement into your daily life include:

Early Intervention and Education

One of the strongest tools in prevention is awareness. Honest education about the risks of substance use disorder helps reduce curiosity and misinformation, especially among young people.
Early signs of emotional distress, trauma, or behavioral changes should be met with care and resources, not judgment. When people are supported early, it can prevent long-term struggles.

Reducing Stigma Around Help

Too many people wait to seek help because they’re afraid of being labeled or misunderstood. Changing the conversation around SUD – from one of blame to one of compassion – encourages more individuals to reach out before things spiral.
At Longview Recovery, we know asking for help shows strength, not weakness. Everyone deserves to feel safe speaking up, and we’re here to ensure that our environment is comfortable and judgment-free.

Supportive Environments Matter

Whether it’s a stable home, caring peer group, or community that encourages growth, supportive environments are key to prevention.
Simple things, such as honest communication, active listening, and consistent support, reduce the risk of substance use disorder and help people make healthier decisions.
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How Longview Recovery Helps Individuals Struggling With SUD

Recovery isn’t about fitting into a box – it’s about building a life that works for you. At Longview Recovery, we take an individualized approach that honors each person’s journey, goals, and story.

Full Spectrum of Care

We offer both inpatient and outpatient services to meet people where they are, including:
  • Medical and sub-acute detox
  • Residential treatment with round-the-clock support
  • Partial hospitalization and intensive outpatient for more flexibility
  • Aftercare and relapse prevention for long-term support

Evidence-Based and Holistic Options

We combine proven therapies with real-life practices that promote healing in every area of life. Treatment may include:
  • Trauma-informed counseling
  • Medication-assisted treatment 
  • Mindfulness and movement
  • Time in nature, including outdoor recreation and physical activity
Clients may go hiking, fish at a nearby lake, or spend time away from campus to reset and reconnect. We believe recovery should feel expansive, not restrictive.

Getting Started With Healing

Beginning the journey with Longview Recovery is simple. Our team takes time to understand each person’s needs, answer questions, and walk through options for care. Whether you’re reaching out for yourself or someone you love, you’re not doing it alone.
From detox to long-term care, our team is ready to create an individualized, achievable treatment plan that fits your life and goals. From there, we coordinate your arrival and ensure a smooth transition into our care.

Taking the First Step Toward Recovery

If you’re struggling with substance use disorder, know this: change is possible, and we are here to walk you through it. The first step may feel hard, but it’s also the most powerful one you can take.
From the first call to your first day, we’re here to support you every step of the way.
Ready to learn more about how Longview Recovery can help you transform your life? Reach out today. This is where your recovery journey begins.

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