Gen Z Mental Health and Addiction: Understanding the Growing Crisis

Clinically approved by Angi Allphin, LPC, NCC
Last reviewed: June 2026

Generation Z (born between 1997 and 2012) has grown up in a world defined by smartphones, social media algorithms, a global pandemic, and a mental health crisis unlike anything previous generations faced at the same age. And while this generation is more open about discussing mental health than any before them, they are also suffering more acutely, and at higher rates, than older generations did at the same stage of life.

The numbers tell a difficult story. And for many young people, untreated mental health struggles are becoming a direct pathway to substance use, addiction, and crisis.

A Growing Crisis Among Young Adults

According to SAMHSA’s 2024 National Survey on Drug Use and Health (NSDUH), serious mental illness (SMI) is highest among adults aged 18–25, at 9%, nearly double the rate seen in adults over 50 (3%). Moderate to severe anxiety symptoms were reported by 14.5% of 18–25-year-olds in 2024, compared to just 4% in adults over 50.

In addition, the National Alliance on Mental Illness (NAMI) reports that 75% of all lifetime mental health conditions emerge by age 24. This statistic underscores just how critical early intervention truly is.

Among young adults aged 18–25 specifically:

• 34% had any mental illness in 2022, the highest rate of any adult age group (SAMHSA)
• 44% of college students report symptoms of depression (Healthy Minds Network)
• 20% had serious thoughts of suicide in 2022 (SAMHSA)
• 79% of Gen Z report feeling lonely sometimes or always (Cigna U.S. Loneliness Index)

These are not abstract statistics. They represent sons, daughters, friends, and colleagues, a generation struggling in ways that demand our attention and action.

Why Gen Z Is Struggling: The Perfect Storm

Understanding the mental health crisis among Gen Z requires looking at the unique pressures this generation has faced, simultaneously and relentlessly. Often, singularly and combined, these conditions can easily cause isolation and anxiety, two key ingredients that can lead to drug and alcohol addiction.

Social media and digital life.

Generation Z is the first generation to grow up entirely in the age of smartphones and social media. Countless studies have found that excessive social media use is associated with significantly higher anxiety. For Gen Z, the impacts are more significant compared to other generations. A mental health inflection point began emerging precisely when smartphone adoption among teens surged.

The COVID-19 pandemic.

The pandemic hit Gen Z at a formative stage of their development: adolescence and early adulthood. Virtual learning, social isolation, the loss of milestones, and the disruption of peer relationships created a perfect storm of mental health challenges with lasting effects. Even as life has returned to some normalcy, Gen Z continues to carry the mental health weight of those years.

Loneliness as a health crisis.

Despite being the most digitally connected generation in history, Gen Z is also the loneliest. Research consistently links loneliness to depression, anxiety, and increased substance use, creating a feedback loop that is difficult to break without meaningful support and connection.

The Undeniable Link Between Mental Health and Addiction

One of the most critical and underappreciated dimensions of the Gen Z mental health crisis is its direct relationship to substance abuse. When anxiety, depression, trauma, and loneliness go unaddressed, young people often turn to substances as a form of self-medication. Addiction is not a character flaw, it is a chronic disease of the brain, often triggered by using drugs and alcohol as a response to untreated pain.

As with mental health challenges, the numbers show an alarming trend:

• 21% of young adults aged 18–25 had a substance use disorder in 2022, the highest rate of any adult age group (SAMHSA)
• Nearly 30% of young adults with PTSD also meet criteria for a co-occurring substance use disorder (Journal of Traumatic Stress)

Often, mental health and addiction feed on each other. As untreated mental illness increases the risk of substance use, substance use worsens mental health outcomes. When both go untreated, as they do for most people struggling with addiction, the consequences compound rapidly.

For Gen Z, this means a generation already facing unprecedented levels of anxiety and depression is simultaneously experiencing the highest rates of substance use disorders of any adult age group. These are not separate problems. They are one crisis with two faces.

In fact, perhaps the most urgent concern is not the scale of the problem, it’s how few young people are receiving help. More than half of Gen Z struggling with addiction and co-occurring mental health issues do not receive treatment for either or both. Barriers include the perceived cost of care, stigma, difficulty navigating the healthcare system, and particularly for Gen Z, a developmental stage in which young people often don’t yet recognize the severity of what they’re experiencing.

Treating Gen Z with Effective Addiction and Mental Health Care

No one is too young for addiction recovery, and the earlier someone receives help, the better their chances to avoid long-term, devastating consequences of addiction.

When the right care is provided, recovery from addiction and mental health issues is possible for young adults. It is essential to find treatment that understands and can address the unique challenges that Gen Z patients experience.

At Valley Hope Addiction Treatment and Recovery, young adults receive individualized treatment plans designed to address their unique clinical, medical, emotional, and relational needs, helping them build a strong foundation for lasting recovery.

With over 60 years in practice, Valley Hope treatment programs have evolved to meet every generation where they are. That includes clinical care designed for today’s patient, including:

Co-Occurring Treatment

Comprehensive, integrated treatment designed to address both mental health and addiction conditions at the same time.

Medically-Monitored Detox

Safely and comfortably withdraw from substances in a supportive, nonjudgmental environment managed by medical experts.

Medication-Assisted Treatment (MAT)

Reduces the physical and emotional distress associated with withdrawal and early recovery.

Cognitive Behavioral Therapy (CBT)
Aids in addressing underlying emotional issues, such as anxiety and depression.

Trauma-Informed Care

Ensures physical, psychological, and emotional safety to foster healing.

Family Involvement

Educates, empowers, and supports patients and their loved ones.

Community Connection

Our lifelong Alumni Support serves as the antidote to the isolation that can drive loneliness, addiction, and relapse.

Today’s young adults are navigating unprecedented pressures, but no one has to face addiction or mental health challenges alone. Valley Hope’s integrated treatment approach helps individuals heal physically, emotionally, and mentally while building a foundation for lasting recovery. If you recognize these struggles in yourself or someone you love, don’t wait for the situation to worsen. Reach out today and take the first step toward hope, healing, and a healthier future.

Reviewed by Angi Allphin, LPC, NCC
Angi is the Executive Director of Valley Hope of Missouri and North Central Regional Vice President for NAADAC, representing seven states across the Midwest. A Licensed Professional Counselor with a lifelong passion for addiction education, Angi began her career as a Nebraska Children’s Division investigator, where she witnessed the profound impact of addiction on families. She later earned her Master’s in Clinical Counseling from Central Methodist University and spent six years teaching Addiction Studies there, further solidifying her role as an educator and advocate. A former President of Missouri’s NAADAC affiliate, Angi is known for her engaging and accessible speaking style, with expertise in addiction as a disease, motivational communication, leadership in behavioral health, and strengthening professional standards across the region.