How Mental Health Disorders Influence Drug and Alcohol Use

Published: Jun 26. 2026

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Mental health disorders and substance use often go hand in hand, with around 21.5 million U.S. adults experiencing both at the same time. Conditions like depression, anxiety, PTSD, bipolar disorder, ADHD, eating disorders, and personality disorders are commonly linked to drug or alcohol use, often through self medication. The relationship works both ways. Substances can also worsen or trigger mental health symptoms, which is why integrated outpatient treatment that addresses both conditions together offers the best chance for lasting recovery. Therapy options like CBT, DBT, and trauma informed care, along with medication support and relapse prevention, form the foundation of effective dual diagnosis treatment.

Struggling with your mental health can make everyday life feel overwhelming, and for many, it leads to substance use. People living with conditions like depression, anxiety, or trauma may turn to alcohol or drugs to cope. When both issues occur together, it is known as a co-occurring disorder and requires care that addresses both conditions at the same time. Getting help matters, as untreated symptoms can make the cycle harder to break. In this article, we explain how mental health disorders influence drug and alcohol use and why choosing the right rehab center in New Jersey is important. Outpatient programs can provide the structure, support, and flexibility needed to manage both. According to the National Survey on Drug Use and Health (NSDUH), about 21.5 million U.S. adults experience both a mental health disorder and a substance use disorder, highlighting how common these conditions are.

Do Mental Health Disorders Influence Drug and Alcohol Use?

When someone has both a mental health disorder and a substance use problem, it is called a co-occurring disorder. This is common. Many people with depression, anxiety, PTSD, or bipolar disorder also struggle with alcohol or drug use. These conditions often feed into each other and make recovery more difficult without the right support.

a photo of a sad man showing how Mental Health Disorders Influence Drug and Alcohol Use
A large number of individuals with depression, anxiety, PTSD, or bipolar disorder also face challenges with alcohol or drug use.

Why People Use Substances to Cope

Living with mental health symptoms can be overwhelming. Some people turn to alcohol or drugs to feel better. This is how mental health disorders influence drug and alcohol use. They may drink to calm their nerves, use pills to sleep, or take stimulants to feel more alert. This is known as self-medication. Clinically, this is referred to as the self-medication hypothesis, which explains how individuals use substances to manage emotional distress or untreated mental health symptoms. While it might help in the moment, it doesn’t solve the problem and can lead to new ones.

The Long-Term Effects of Self-Medication

Using substances to manage mental health symptoms creates a harmful cycle. The brain adjusts to the substances, leading to tolerance and, over time, dependence. This can make the original mental health condition worse. For example, alcohol can deepen depression, and stimulants can raise anxiety once the effects wear off. It is also important to understand that this relationship works both ways. While mental health disorders influence drug and alcohol use, substance use can also trigger or worsen mental health conditions. Long-term alcohol or drug use can change brain chemistry, increase anxiety, deepen depression, and even contribute to the development of new psychiatric symptoms. This bidirectional link makes early and integrated treatment even more important.

Why Both Issues Must Be Treated Together

Mental health disorders influence drug and alcohol use. Therefore, treating one issue without the other often fails. If someone stops using drugs after a drug rehab New Jersey program, but their depression is not addressed, they may start using again. If they get therapy for anxiety but continue to misuse substances, progress is limited. A combined treatment approach gives the best chance for long-term success.

A person feeling depressed and thinking about using substances, which is how mental health disorders influence drug and alcohol use
Mental health disorders influence drug and alcohol use. This creates a condition called dual diagnosis.

This is why dual diagnosis treatment New Jersey programs are designed to treat both conditions at the same time. By combining mental health care with substance use treatment, they provide a more complete and effective path toward long-term recovery.

Common Mental Health Conditions Linked to Substance Use

Certain mental health conditions are more likely to be linked to substance use. When symptoms are hard to manage, some people turn to alcohol or drugs to cope. Here are four common conditions that often appear alongside substance use:

  1. Depression
  2. Anxiety disorders
  3. Bipolar disorder
  4. Post-traumatic stress disorder (PTSD)

Depression

People with depression often feel deep sadness, low energy, or a loss of interest in daily life. Some may use alcohol or drugs to numb these feelings or to feel something different. Substances like alcohol, which is a depressant, can make symptoms worse over time. Instead of feeling better, the person may become more isolated and hopeless.

Anxiety Disorders

Anxiety can cause constant worry, fear, or panic. To calm these feelings, some people use alcohol, marijuana, or sedatives. This can lead to short-term relief, but it often creates long-term problems. As tolerance builds, more of the substance is needed to feel the same effect. This raises the risk of dependence and worsens anxiety when not using.

Bipolar Disorder

Bipolar disorder involves intense mood swings—high energy (mania) and deep lows (depression). During manic phases, some may use stimulants or alcohol to keep the “high” going. During lows, they may turn to depressants to escape. These patterns increase the risk of addiction and can make mood changes more severe and harder to treat.

Post-Traumatic Stress Disorder (PTSD)

PTSD can cause flashbacks, nightmares, and a constant sense of danger. People with PTSD may use substances to dull their emotional pain or avoid traumatic memories. While this might offer a temporary escape, it can deepen emotional wounds and block healing. PTSD is especially common among veterans, first responders, and survivors of physical or emotional abuse. These groups may face repeated exposure to trauma, which increases the likelihood of both substance use and severe mental health symptoms.

Military people in a support group after learning how mental health disorders influence drug and alcohol use
Mental health disorders influence drug and alcohol use across all backgrounds, including the military.

ADHD and Substance Use

Attention-deficit/hyperactivity disorder (ADHD) is strongly linked to substance use disorders. People with ADHD may struggle with impulsivity, restlessness, and difficulty focusing. Some turn to substances like alcohol, marijuana, or stimulants to manage these symptoms or to feel more in control. However, substance use can worsen attention issues and increase the risk of addiction. Without proper treatment, this cycle can become difficult to break.

Eating Disorders and Substance Use

Eating disorders such as anorexia, bulimia, and binge eating disorder often co-occur with substance use. Some individuals misuse substances to control appetite, cope with body image issues, or manage emotional distress. Drug abuse can worsen eating disorders by increasing physical health risks and intensifying emotional instability. This combination can place significant strain on both physical and mental health. Integrated care is essential to address both the eating disorder and substance use safely.

Personality Disorders and Substance Use

Personality disorders, especially borderline personality disorder (BPD), have a high overlap with substance use disorders. People with BPD may experience intense emotions, unstable relationships, and difficulty regulating mood. Substances may be used to cope with emotional pain or impulsive urges. This can increase the risk of addiction and make recovery more complex without structured, integrated treatment.

Substances Commonly Misused by People With Mental Health Struggles

People dealing with mental health issues often turn to specific substances that seem to match what they are feeling or trying to avoid. Over time, these patterns of use can lead to dependence and worsen both mental and physical health. This is how mental health disorders influence drug and alcohol use. Some of the most common examples:

  1. Anxiety and alcohol
  2. Mood disorders and prescription drugs
  3. Depression and cocaine

Anxiety and Alcohol

Alcohol is one of the most commonly misused substances among people with anxiety. It can temporarily relax the body and mind, helping to ease feelings of nervousness or fear. However, alcohol is a depressant. It can increase anxiety once the effects wear off. Regular drinking can also interfere with sleep and increase negative thoughts, creating a harmful cycle. If you’re struggling with both anxiety and alcohol use, an alcohol rehab New Jersey center can offer outpatient care that helps address both issues together.

Mood Disorders and Prescription Drugs

People with mood disorders like bipolar disorder or chronic depression may misuse prescription drugs. This includes painkillers, anti-anxiety medications, or stimulants. These drugs may offer a sense of calm or control, but misuse can quickly lead to addiction and dangerous mood swings. A prescription drug addiction treatment program NJ residents trust can help manage both your mental health and substance use in a safe, outpatient setting.

Depression and Cocaine

Depression can bring low energy, lack of motivation, and emotional numbness. Some people use cocaine or other stimulants to feel more alert or uplifted. While the effects may feel positive for a short time, they are usually followed by a crash that makes depressive symptoms worse. If you relate to this cycle, a cocaine addiction treatment NJ program can provide targeted support without needing inpatient care.

A person in distress holding their head
When pain builds up, it can lead to substance use. This is how mental health disorders influence drug and alcohol use when left untreated.

Warning Signs of a Co-Occurring Disorder

If you are unsure whether you or a loved one may be dealing with both mental health and substance use issues, here are some common signs:
  • Using alcohol or drugs to cope with stress, anxiety, or sadness
  • Mood swings that worsen with substance use
  • Difficulty stopping or controlling substance use
  • Withdrawal from family, work, or daily responsibilities
  • Increased tolerance or needing more of a substance to feel the same effect
  • Ongoing mental health symptoms despite periods of sobriety
  • Feeling unable to manage emotions without substances

The Importance of Integrated Outpatient Treatment

When someone is dealing with both a mental health disorder and substance use, it’s not enough to treat just one. Mental health disorders influence drug and alcohol use, which means that these issues often affect each other. If one is left untreated, it can make the other worse. That’s why integrated care—treating both at the same time—is so important.

Outpatient treatment offers flexibility and support without needing to step away from your life. It allows you to keep up with daily responsibilities while attending regular appointments and therapy sessions.

Therapy Options

With integrated outpatient care, you get therapy options that will give you the tools and support needed to treat both conditions and build a healthier life. They are:

  • Cognitive behavioral therapy (CBT): Helps you understand how your thoughts affect your actions. It teaches tools to manage triggers, stress, and negative thinking.
  • Dialectical behavior therapy (DBT): Focuses on handling strong emotions and improving relationships.
  • Trauma therapy: Many people with substance use issues have a history of trauma. This approach ensures treatment is sensitive to those experiences and supports healing.

A therapist talking to a person about how mental health disorders influence drug and alcohol use
Talk therapy helps people understand how mental health disorders influence drug and alcohol use and learn healthier ways to cope.

Medication for Mental Health

For some, medication is helpful for managing conditions like anxiety, depression, or mood swings. In outpatient care, medications are prescribed carefully and are always part of a bigger treatment plan that includes therapy and support. In some cases, New Jersey medication assisted treatment programs may also be included to support recovery by combining medication with therapy and ongoing care.

Relapse Prevention and Support

Outpatient programs often include individual counseling and group support. These sessions help you learn coping skills, build a strong support system, and stay on track. Being around others with similar struggles can reduce feelings of isolation.

Why People Don’t Get Help

Even when someone recognizes the problem, getting help is not always easy. Stigma around mental health and addiction can make people feel ashamed or afraid to speak up. Others worry about cost, insurance coverage, or taking time away from work and family. Some simply do not know where to start. Understanding that support is available and that recovery is possible is often the first step toward change.

Insurance and Coverage Options

Paying for mental health and substance use treatment might overwhelm you. However, many outpatient services are covered by insurance. If you have health insurance, there’s a good chance you can access care with little or no out-of-pocket cost. You might have questions like, Does Humana cover alcohol rehab? Or will Cigna help with therapy costs? These are common concerns, and the good news is that most outpatient programs accept a wide range of insurance providers.

Before starting treatment, it’s important to check what your plan covers. You might be asking, Does Aetna cover drug rehab? Or what services are included under UnitedHealthcare? These are valid questions, and getting clear answers can make the process feel less stressful.

Many rehab centers offer free insurance verification to help you with this step. They can explain your benefits, confirm if services like therapy, medication support, or counseling are included, and guide you through your coverage options. This makes it easier to focus on getting the care you need.

Here are some of the major insurance providers that often cover outpatient mental health and substance use treatment:

  • Aetna Insurance
  • Cigna Insurance
  • Blue Cross Blue Shield
  • UnitedHealthcare Group Insurance
  • Humana Insurance
  • Oscar
  • Optum
  • AmeriHealth Insurance
  • AvMed
  • UMR
  • Tricare (for military members and families)
  • Aflac (supplemental coverage may apply)

In addition to insurance, some people may qualify for the FMLA (Family and Medical Leave Act). This federal program allows you to take time off from work to focus on your health without losing your job.

Female therapist with a clipboard, prepared to address how mental health disorders influence drug and alcohol use
You need a therapist who knows how mental health disorders influence drug and alcohol use and can provide care tailored to your specific needs.

Getting Help From a New Jersey Rehab Center

If you are dealing with both mental health symptoms and substance use, it’s important to find an outpatient rehab center that offers the right kind of support. Here’s what to look for:

  • Integrated treatment: Choose a center that treats both mental health and substance use at the same time. This gives you the best chance for real, lasting recovery.
  • Licensed professionals: Look for a team that includes therapists, counselors, and mental health providers who know how mental health disorders influence drug and alcohol use and work together to create your treatment plan.
  • Proven therapies: Effective outpatient programs offer cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), and trauma-informed care to help you manage symptoms and build coping skills.
  • Medication support: If needed, some centers offer medication to treat anxiety, depression, or mood disorders as part of a larger care plan.
  • Flexible scheduling: Outpatient programs should work around your daily life, with daytime or evening options available.
  • Specialized services: Many centers offer focused services like meth addiction treatment NJ programs, as well as support for alcohol, opioids, and other substances.
  • Long-term support: Recovery doesn’t end after therapy. A good center will also help with relapse prevention, support groups, and follow-up care.

A person smiling at themselves in the mirror
Understanding how mental health disorders influence drug and alcohol use will help you take back control of your life.

The Right Care Can Help You Feel Like Yourself Again

Mental health disorders influence drug and alcohol use. This is why treating both mental health and substance use at the same time gives you a better chance at real, lasting recovery. When you work on both, you start to feel more balanced, more in control, and more hopeful about the future. Integrated outpatient care helps you manage symptoms, build healthy habits, and prevent relapse. It also supports your emotional well-being and gives you tools to handle stress, triggers, and daily challenges. With the right care, you can improve your mood, strengthen your focus, and reclaim your life.

Frequently Asked Questions

Which comes first, the mental illness or the substance use?

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It depends on the person. Some people develop a mental health disorder first and turn to substances to cope, while others develop mental health symptoms as a result of long term substance use. The relationship is bidirectional, which is why both conditions need to be treated together for lasting recovery.

Can substance use cause mental illness?

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Yes. Long term alcohol or drug use can change brain chemistry, increase anxiety, deepen depression, and even contribute to the development of new psychiatric conditions like substance induced psychosis. Even when mental illness was not present before, addiction can create symptoms that persist long after substance use stops.

What is dual diagnosis treatment?

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Dual diagnosis treatment is integrated care designed to address both a mental health condition and a substance use disorder at the same time. It combines therapy, medication management, and relapse prevention in a single coordinated plan rather than treating each issue in isolation.

Can I get treated for both mental health and substance use in an outpatient setting?

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Yes. Outpatient programs in New Jersey often offer integrated care that allows you to keep up with work, school, and family responsibilities while attending regular therapy and medical appointments. This setting works well for those who do not need 24/7 medical supervision.

What are the warning signs of a co-occurring disorder?

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Common signs include using alcohol or drugs to cope with stress or sadness, mood swings that worsen with substance use, difficulty controlling use, withdrawal from family or work, increased tolerance, ongoing mental health symptoms even during sobriety, and feeling unable to manage emotions without substances.

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