Man sitting alone on a bench in Agra, displaying signs of stress and loneliness. serious mental illness

Understanding Serious Mental Illness and How to Seek Support

May 27, 2025
Dr. Matthew Mandelbaum

Serious mental illness (SMI) often carries unseen struggles that can affect every aspect of a person’s life. For successful professionals, university students, or even sensitive parents striving to balance it all, SMI can feel like a weight that is nearly impossible to shed.

According to the National Institute of Mental Health, more than 59.3 million adults in the United States experience a mental illness within the past year. This figure highlights the significant portion of the U.S. adult population affected by mental health conditions.

Dr. Matthew G. Mandelbaum, a licensed psychologist with over 20 years of experience, specializes in guiding individuals through these challenges, helping them regain control and build emotional resilience.

This comprehensive guide explores the complexities of serious mental illness, how it manifests, and where individuals can seek support.

Introduction to Mental Health

Mental health is a vital part of overall well-being, shaping how we think, feel, and act as we navigate daily life. It influences our ability to cope with stress, build relationships, and make decisions.

When mental health is compromised by mental illnesses—such as anxiety disorders, mood disorders, or severe mental illness like bipolar disorder and major depression—it can lead to serious functional impairment. This means that a person’s ability to manage work, maintain relationships, or perform daily activities may be substantially interfered with.

According to the National Institute of Mental Health, more than 59.3 million adults in the United States experience a mental illness each year. These mental health conditions can range from mild to severe, with some leading to significant challenges in major life activities.

Severe mental illness, in particular, can disrupt employment, social connections, and self-care, sometimes resulting in substance abuse as individuals attempt to cope.

Access to effective mental health services is essential for those living with mental health disorders. Reducing the stigma associated with mental illness and encouraging open conversations about mental health can help individuals seek the support they need to improve their quality of life.

What Is Considered a Serious Mental Illness?

Serious mental illness, according to the National Institute of Mental Health, refers to a mental, behavioral, or emotional disorder resulting in substantial interference with or limitation of one or more major life activities.

It affects approximately 5.6% of U.S. adults annually, creating profound impacts on daily life.

Common conditions falling under SMI include:

  • Bipolar Disorder
  • Schizophrenia
  • Major Depression
  • Anxiety Disorders
  • Eating Disorders

The hallmark of SMI is functional impairment, meaning these illnesses interfere with a person’s ability to perform basic tasks such as maintaining a job, engaging in relationships, or even managing self-care.

Statistics bear out its gravity:

  • 1 in 5 U.S. adults experiences a form of mental illness each year, but SMIs affect a smaller percentage (around 5.6%).
  • Individuals with SMI are 40% more likely to experience chronic physical health conditions.

Which Is the Most Severe Mental Illness?

Among serious mental illnesses, schizophrenia is considered one of the most severe. Psychosis is a core feature of schizophrenia, and common symptoms include delusions, hallucinations, disorganized behavior, and incoherent speech.

Each of these is a symptom that reflects the presence of psychosis and significant disruption in thinking and perception. Changes or dysfunction in certain brain regions are believed to contribute to the development of psychosis and related symptoms in schizophrenia.

Symptoms of Schizophrenia:

  • Delusions (false beliefs not based in reality)
  • Hallucinations (perceiving sights or sounds that aren’t there)
  • Flat Affect (diminished emotional expression)
  • Social Withdrawal and difficulty forming relationships
  • Impaired Reality Testing or psychotic symptoms

Without proper treatment, symptoms can escalate, potentially leading to suicidal ideation, disability, or substantial disconnection from reality.

However, schizophrenia treatment has advanced significantly. A combination of atypical antipsychotics, cognitive behavioral therapy, and strong support systems have shown high efficacy in improving quality of life for individuals diagnosed with this condition.

Types of Emotional Disorders & Anxiety Disorders

Emotional disorders encompass a wide range of mental health conditions that can deeply affect a person’s daily life. Mood disorders, such as bipolar disorder and major depression, are marked by ongoing feelings of sadness, hopelessness, and a lack of motivation, making it difficult to find joy or energy for everyday activities.

Anxiety disorders—including generalized anxiety disorder and panic disorder—can cause persistent worry, fear, and physical symptoms that interfere with work, school, and relationships.

Psychotic disorders, like schizophrenia, are characterized by symptoms such as confused thinking, hallucinations, and delusions. These symptoms can make it challenging for individuals to distinguish reality from their perceptions, leading to severe disruptions in daily functioning.

Eating disorders, such as anorexia nervosa and bulimia nervosa, not only impact physical health but also take a significant emotional toll, often requiring comprehensive treatment to address both the mental and physical aspects of the disorder.

Each of these emotional disorders can lead to substantial impairment in a person’s ability to participate in daily life, highlighting the importance of early intervention and effective treatment.

Eating Disorders and Treatment Options

Eating disorders are complex mental health conditions that can have life-threatening physical and emotional effects. Common types include anorexia nervosa, bulimia nervosa, and binge eating disorder.

These disorders are often characterized by an intense preoccupation with body image, restrictive eating habits, or cycles of overeating and purging. The consequences can be severe, affecting not only physical health but also emotional well-being and relationships.

Effective treatment for eating disorders typically involves a combination of outpatient treatment, medication, and counseling.

Support groups and peer support, such as those offered by the National Alliance on Mental Illness (NAMI), provide a sense of community and understanding for individuals on their recovery journey. In some cases, medications like atypical antipsychotics may be prescribed, especially when eating disorders occur alongside other mental health conditions such as depression or anxiety disorders.

Addressing both the psychological and physical aspects of eating disorders is crucial for long-term recovery. With the right support and treatment, individuals can regain control over their health and improve their quality of life.

Where Do People With Severe Mental Illness Go for Help?

Seeking appropriate care is critical for managing SMI, but SMI patients often face unique challenges when seeking help, including barriers related to access and social determinants of health.

Lack of insurance can significantly limit access to mental health services for SMI patients, making it difficult for some individuals to receive necessary treatment.

Additionally, homelessness is a common challenge among SMI patients, and support services frequently address both mental health and housing needs to improve stability and quality of life. Fortunately, many options exist to provide robust support and relief.

Treatment Options:

Outpatient Treatment

Regular one-on-one therapy sessions, such as those offered by Dr. Mandelbaum, can provide consistent guidance.

Telepsychology

Virtual sessions allow individuals to connect with specialists without location barriers. Dr. Mandelbaum provides telepsychology services in New York, Florida, and 43 states through Psypact.

Peer Support

Groups such as the National Alliance on Mental Illness (NAMI) offer peer-led communities where individuals can share experiences and gain support.

Social Support Networks

Building a circle of empathetic friends or attending support groups can ease loneliness.

Accessing these services can make a tangible difference in dealing with the challenges of an SMI diagnosis.

Overcoming Stigma and Barriers to Care

Stigma remains one of the biggest obstacles for individuals seeking help for mental health conditions, including severe mental illness and substance abuse.

Negative attitudes and misconceptions about mental illness can lead to social withdrawal, low self-esteem, and a reluctance to pursue treatment. This can further decrease motivation and make it even harder for individuals to cope with their symptoms.

Public awareness campaigns and education are essential for breaking down these barriers and encouraging people to access mental health services. The National Institute of Mental Health offers valuable resources, including fact sheets and treatment guidelines, to help individuals and families better understand mental health conditions.

Peer support and counseling play a vital role in helping individuals manage feelings of hopelessness, suicidal ideation, and the emotional challenges that come with mental illness.

Addressing environmental stressors—such as unstable housing or a lack of social support—can also make a significant difference in a person’s recovery journey. By making mental health services more accessible and fostering supportive communities, we can help individuals overcome stigma and lead healthier, more fulfilling lives.

9 Resources for Mental Health Illnesses

Finding the right resources can be a critical step toward managing and understanding mental health illnesses. There are growing concerns about disparities in access to mental health resources, diagnosis, treatment, and outcomes among diverse racial, ethnic, geographic, and social groups with serious mental illness (SMI).

Many organizations listed below work to address these concerns by providing equitable support and information. The relationship between access to these resources and improved mental health outcomes for individuals with SMI highlights the importance of connecting people to appropriate care.

  1. National Alliance on Mental Illness (NAMI): Visit www.nami.org for educational resources, advocacy opportunities, and a free helpline for individuals and families navigating mental illness.
  2. Substance Abuse and Mental Health Services Administration (SAMHSA): SAMHSA offers a 24/7 confidential helpline and resources on mental health and substance use disorders. Learn more at www.samhsa.gov.
  3. Psychology Today: Use their database to find licensed therapists in your area or explore articles written by professionals on mental health topics. Visit www.psychologytoday.com.
  4. Crisis Text Line: For immediate support, text HOME to 741741 to connect with a trained crisis counselor. Learn more at www.crisistextline.org.
  5. Anxiety and Depression Association of America (ADAA): This site aims to improve the understanding and treatment of anxiety, depression, OCD, and PTSD. Visit www.adaa.org.
  6. Mental Health America (MHA): Access free screening tools, educational programs, and advocacy information at www.mhanational.org.
  7. National Suicide Prevention Lifeline: Call 988 for free, confidential, 24/7 support for individuals in crisis or those supporting someone in distress. Visit https://988lifeline.org/.
  8. The Trevor Project: LGBTQ+ individuals seeking help can reach out to The Trevor Project for support, particularly for youth. Visit www.thetrevorproject.org.
  9. World Health Organization (WHO): Learn about global mental health initiatives and access reliable information on mental health care at www.who.int.

These resources can provide valuable assistance and guidance, whether you are seeking help for yourself or supporting someone else. Remember, help is always available, and reaching out is a vital step toward recovery.

What Is the Toughest Mental Illness to Treat?

No mental illness is easy to treat, but certain conditions, such as personality disorders and co-occurring disorders, pose unique challenges.

For example:

  • Borderline Personality Disorder often requires intensive therapy like Dialectical Behavior Therapy (DBT) to help individuals regulate emotions.
  • Co-occurring issues like substance abuse can complicate treatment plans, as addressing both conditions simultaneously becomes essential.

Keys to Treatment Success:

  • Medication: Prescribed drugs, like antidepressants or antipsychotics, stabilize symptoms.
  • Therapy: Evidence-based approaches such as trauma-informed care and cognitive behavior therapy work to address the root causes of emotional disorders.
  • Holistic Support: Focusing on both physical health and mental health increases long-term results.

Recovery may take time, but with proper care, individuals can regain control over their lives.

Dr. Matthew G. Mandelbaum’s Approach to Mental Health

Dr. Matthew G. Mandelbaum is a beacon of hope for professionals, university students, and sensitive families navigating the complexities of SMI. With over two decades of experience, his therapy methods are tailored to help high-achievers overcome barriers to emotional wellness and personal growth.

Why Choose Dr. Mandelbaum

  • Specialization in Dialectical Behavior Therapy (DBT) and trauma-informed care.
  • Personalized Treatment customized to each individual’s unique needs.
  • Virtual and In-Person Care, making therapy accessible regardless of where you live.

“Dr. Mandelbaum gave me the clarity and tools I needed to rebuild my confidence and improve my relationships,” says one client, echoing the sentiments of many.

How He Helps:

Developing Resilience

Dr. Mandelbaum equips clients with tools for coping, mindfulness, and navigating stress—or as he phrases it, “Shifting from surviving to thriving.”

Helping High Achievers Gain Wisdom

Professionals in competitive fields benefit from his expertise in overcoming perfectionism and impostor syndrome.

Empowering Personal Growth

Whether through managing a mood disorder, combatting anxiety, or healing trauma, Dr. Mandelbaum works to strengthen emotional health and self-acceptance.

Seeking Support for Serious Mental Illness

Untreated SMI can significantly diminish quality and length of life, with suicide ranking as a leading cause of death for affected individuals. Persons from diverse backgrounds or demographic groups who may be seeking support for SMI can benefit greatly from taking the first step toward treatment and support, which can transform not just one’s mental health but their broader life trajectory.

Dr. Matthew G. Mandelbaum is here to help. With virtual telepsychology services and customized plans, you’re never alone in navigating whatever life throws your way.

Schedule a Consultation Today

Take charge of your mental health with Dr. Mandelbaum’s guidance. Call +1-212-933-0758 or visit Groundbreaker Therapy to get started today.