How Historical Trauma Can Affect Your Clients

Historical trauma emphasizes that the impacts of traumatic events such as colonization, slavery, war, genocide, forced displacement, or systemic discrimination don't only affect individuals who directly experienced them, but can also shape the well-being, identity, and collective memory of future generations.

The key idea behind historical trauma is that it is not only an event that affects people at the time it occurs, but its effects are transmitted through cultural, social, and familial structures. These effects can manifest in various ways, such as through mental health issues, substance abuse, disrupted family dynamics, a sense of disconnection from cultural heritage, and patterns of chronic stress.

Examples of historical trauma include:

  • The impact of colonization on Indigenous peoples, which involved violence, land dispossession, forced assimilation, and cultural erasure.
  • The enslavement of Africans and its ongoing effects on descendants, including systemic racism and social inequality.
  • The Holocaust and the long-lasting trauma experienced by Jewish communities.
  • The forced relocation and internment of Japanese-Americans during World War II.

How historical trauma works:

Sotero (2006) presented a conceptual framework of historical trauma that consists of three distinct phases. Here are the three phases you might see in the therapy room with current clients, plus how it can also affect successive generations.



Healing from historical trauma often involves a process of community reconciliation, cultural revitalization, storytelling, acknowledgment of past wrongs, and trauma-informed care. Many communities who have experienced historical trauma work toward restoring cultural practices, language, and healing rituals as part of reclaiming their identity and well-being.
Digital Seminar:
Social Justice, Ethics and Multicultural Issues for Mental Health Professionals
POS055270
Without seeing your clients in their entirety, you could fail to recognize the unique challenges, stressors, barriers and burdens that can lie at the heart of their mental health issues. But even therapists can feel uncomfortable with conversations surrounding racial, cultural, sexual, economic and religious issues. And cultural stigmas and distrust born from societal power dynamics can cause some clients to hold back in therapy or leave treatment early.

This inspiring class will open your eyes to the struggles of disenfranchised or marginalized populations, and give you practical and innovative techniques so you can comfortably and successfully work with them in treatment. You’ll leave able to more capably assess clients, avoid cultural misunderstandings that can harm the therapeutic alliance, and gain the trust you need to achieve truly transformative results.
Online Course:
Ethics & Cultural Competency Training Bundle
CRS002010
Get more than 20 ethics and cultural competency best practices along with the latest information available. From safely navigating the “grey areas” of boundary issues and dual relationships to confidently creating breakthrough therapy experiences with clients different from yourself…you’ll end this course ready to handle any ethical challenges that come your way and fully prepared to work with your clients’ diverse backgrounds with skill, humility, and responsiveness. Whatever your clinical background, this course is perfect if you’re looking to stay current, avoid making critical errors, and meet your licensing requirements.
Lisa Connors PhD, LCPC, LPC, NCC

Lisa Connors, PhD, LCPC, LPC, NCC is a licensed clinical professional counselor (MD), licensed professional counselor (PA), national certified counselor, board-certified coach, master addiction counselor, certified clinical trauma professional, and certified grief-informed professional. She is also a fellow in thanatology.

Ms. Connors has been in the human services/social work/counseling/addiction fields for over 30 years. She has worked in a variety of settings providing services to the despondent and downtrodden. Ms. Connors works tirelessly to help others reach their fullest potential in life, helping and empowering others who have been oppressed, stigmatized, marginalized, and victimized. Her greatest passion is working with individuals affected by HIV/AIDS, substance use and mental health disorders, violence/abuse/trauma, grief and loss, and racial and social injustices.

Ms. Connors has served on the Board of Directors for the Maryland Chapter of the National Association of Social Workers and is the past co-chair of the HIV Planning Group for the state of Maryland. Currently, she serves as the interim secretary and treasurer for the Pennsylvania Association of Addiction Professionals. In addition to her clinical work, Ms. Connors is a college professor at Anne Arundel Community College. She is a member of many organizations, including ACA, NASW, NAADAC, and ADEC. Ms. Connors earned her Master of Arts in professional counseling from Liberty University, her Master of Divinity from Howard University, and her PhD in psychology at Walden University.

Speaker Disclosures:
Financial: Lisa Connors maintains a private practice and has employment relationships with Anne Arundel Community College, University of Maryland, and The Institute for Life Coach Training. She receives compensation as a consultant. Lisa Connors receives a speaking honorarium and recording royalties from PESI, Inc. She has no relevant financial relationships with ineligible organizations.
Non-financial: Lisa Connors is a member of the Maryland Association of Addiction Professionals, the National Association of Social Workers (NASW), and the American Counseling Association (ACA).

Let's Stay in Touch

Get exclusive discounts, new training announcements & more!

You May Also Be Interested In These Related Blog Posts
Children Doing Activity In Art And Crafts
The Feelings Monster: An Attachment-Centered Play Therapy Technique for Disruptive Behavior Disorders
Play therapist Clair Mellenthin introduces the Feelings Monster Box—a family-based intervention for children with ODD and Conduct Disorder rooted in attachment theory.
Attached Child Hugging His Grandfather
How Attachment Shapes the Roots of Childhood Disruptive Behavior Disorders
Clair Mellenthin, PhD, LCSW, RPT-S™, explores how insecure and disorganized attachment histories drive the development of Oppositional Defiant Disorder (ODD) and Conduct Disorder (CD), why treating...
Family On A Mental Health Therapy Session
A Transformative Tool for Healing Foster Youth Trauma
Jeanette Yoffe, MA, LMFT, shares why traditional talk therapy often falls short for this population and introduces the Hold Onto My Feelings intervention—a body-up, attachment-focused technique she...
Somatic Healing Session For Wellness, Health Or Trauma Release
A Somatic Strategy to Rebuild Trust and Regulation in Teens and Adults
Learn how the Four-Point Self-Awareness Practice builds somatic literacy, supports nervous system regulation, and lays the groundwork for genuine therapeutic trust—one breath at a time.
Children Doing Activity In Art And Crafts
The Feelings Monster: An Attachment-Centered Play Therapy Technique for Disruptive Behavior Disorders
Play therapist Clair Mellenthin introduces the Feelings Monster Box—a family-based intervention for children with ODD and Conduct Disorder rooted in attachment theory.
Attached Child Hugging His Grandfather
How Attachment Shapes the Roots of Childhood Disruptive Behavior Disorders
Clair Mellenthin, PhD, LCSW, RPT-S™, explores how insecure and disorganized attachment histories drive the development of Oppositional Defiant Disorder (ODD) and Conduct Disorder (CD), why treating...
Family On A Mental Health Therapy Session
A Transformative Tool for Healing Foster Youth Trauma
Jeanette Yoffe, MA, LMFT, shares why traditional talk therapy often falls short for this population and introduces the Hold Onto My Feelings intervention—a body-up, attachment-focused technique she...
Somatic Healing Session For Wellness, Health Or Trauma Release
A Somatic Strategy to Rebuild Trust and Regulation in Teens and Adults
Learn how the Four-Point Self-Awareness Practice builds somatic literacy, supports nervous system regulation, and lays the groundwork for genuine therapeutic trust—one breath at a time.