How Childhood Trauma Can Show Up in Adulthood: Understanding the Lasting Impact of Adverse Childhood Experiences

Sometimes we grow up, leave the environment we were raised in, build careers, relationships, and families of our own, and still find ourselves responding to situations in ways we don’t fully understand.

You might notice that you:

• Feel responsible for keeping everyone around you happy.

• Have difficulty saying no without feeling guilty.

• Overthink conversations long after they happen.

• Struggle to trust yourself or your decisions.

• Become overwhelmed by conflict.

• Shut down or withdraw when emotions become intense.

• Find yourself repeatedly putting your needs aside in relationships.

• Have difficulty accepting help or depending on other people.

• Feel like you always need to be productive or useful.

• Understand your patterns intellectually but still struggle to change them.

Sometimes these patterns make more sense when we look at what you learned much earlier in life.

Adverse childhood experiences can influence how people learn to understand safety, relationships, emotions and themselves. This does not mean that every difficulty in adulthood is caused by childhood trauma, nor does experiencing adversity mean someone will inevitably develop mental-health or relationship problems.

But for some adults, understanding the connection between past experiences and present-day patterns can provide an important piece of the puzzle.

What Are Adverse Childhood Experiences?

Adverse childhood experiences, often referred to as ACEs, are potentially traumatic or stressful experiences occurring before age 18.

The Centers for Disease Control and Prevention (CDC) identifies examples including:

• Physical, emotional or sexual abuse

• Physical or emotional neglect

• Witnessing violence

• Growing up around substance-use difficulties

• Mental-health difficulties within the household

• Parental separation or instability

• Having a household member incarcerated

The original ACE categories are not an exhaustive definition of childhood adversity. Experiences such as housing instability, poverty, discrimination, community violence and other circumstances that disrupt a child's sense of safety or stability may also have significant effects.

Importantly, having experienced an ACE does not automatically mean someone has been psychologically traumatized or will experience difficulties later in life.

Research speaks about increased risk, not predetermined outcomes.

Why Can Childhood Experiences Continue to Affect Us as Adults?

Childhood is an important period for learning about ourselves, relationships and the world around us.

Children depend heavily on the adults around them for safety, emotional support and stability. When an environment is repeatedly unpredictable, frightening, rejecting, neglectful or emotionally unsafe, children may adapt to those circumstances.

The CDC notes that prolonged or intense stress associated with childhood adversity can affect developing stress-response systems as well as areas involved in attention, learning and decision-making.

Those adaptations may have been understandable, or even protective, within the environment in which they developed.

The challenge is that something that helped you cope at 8 years old may create difficulties when you are 30.

You may no longer be in the same environment.

But your mind and body may still respond as though some of the old rules apply.

1. You May Become Highly Attuned to Other People's Emotions

Perhaps growing up, someone's mood determined what kind of evening you were going to have.

You learned to notice:

Are they angry?

Are they disappointed?

Is something about to happen?

Being able to quickly notice changes in another person's mood may once have helped you anticipate conflict or protect yourself.

As an adult, however, you might notice yourself constantly monitoring people.

A short text message feels concerning.

Someone's tone changes and you immediately wonder whether you did something wrong.

Your partner seems quiet and you feel pressure to fix it.

You may become so accustomed to noticing what everyone else needs that recognizing your own needs becomes much harder.

This kind of hyperawareness can occur for many reasons and is not, by itself, proof of childhood trauma. But for some people, exploring where the pattern developed can be useful.

2. Setting Boundaries May Feel Like You Are Doing Something Wrong

Someone can understand intellectually that boundaries are healthy and still experience enormous guilt when setting one.

You might say:

“I know I'm allowed to say no. I just feel terrible when I do.”

If love, acceptance or safety felt connected to being agreeable, helpful, quiet or easy to manage growing up, prioritizing yourself later may feel unfamiliar.

You may find yourself:

• Saying yes when you want to say no.

• Overexplaining your decisions.

• Feeling responsible for another person's disappointment.

• Avoiding difficult conversations.

• Allowing things you are uncomfortable with because you don't want conflict.

• Feeling selfish when you prioritize your own needs.

This is why boundary work can involve more than learning the right words to say.

Sometimes the deeper work involves understanding why saying those words feels so threatening in the first place.

3. You May Struggle With Emotional Regulation

Some people who experienced childhood adversity notice that emotions can feel particularly intense—or that they have learned to disconnect from emotions almost entirely.

You might:

• Become overwhelmed quickly.

• Shut down during conflict.

• Feel numb or disconnected.

• Avoid uncomfortable feelings.

• Ruminate for hours.

• Suppress your emotions until they eventually become overwhelming.

Research supports an association between childhood maltreatment and later difficulties with emotion regulation. A 2026 meta-analysis examining childhood emotional abuse, for example, found associations with patterns including avoidance, suppression and difficulties in emotional processing. Broader meta-analytic research has also identified emotion regulation as one pathway that may help explain the association between childhood adversity and later psychological difficulties.

That does not mean emotional dysregulation proves that trauma occurred.

It means that our histories can be relevant when trying to understand how we learned to respond to difficult emotions.

4. You May Question Whether Your Feelings Are Valid

Imagine repeatedly hearing messages such as:

“Stop crying.”

“You're too sensitive.”

“You have nothing to be upset about.”

“Other people have it worse.”

Or perhaps nobody explicitly said those things, but there simply wasn't much space for emotions in your household.

Over time, you may have learned to distrust your internal experiences.

As an adult, that might sound like:

“Maybe I'm overreacting.”

“I shouldn't be upset.”

“Maybe I'm making a big deal out of nothing.”

You might ask everyone else what they think before allowing yourself to trust what you think.

Part of healing can involve learning to notice your emotional experiences without immediately dismissing or judging them.

5. Relationships Can Feel Complicated

Our childhood experiences do not dictate the relationships we will have as adults.

However, there is evidence of an association between childhood maltreatment and patterns of attachment in adulthood. A large 2026 meta-analysis involving more than 82,000 participants found childhood maltreatment was associated with higher attachment anxiety and attachment avoidance.

Some adults may notice this through:

• Fear that someone will leave.

• Difficulty trusting other people.

• Feeling uncomfortable depending on someone.

• Becoming highly distressed by perceived rejection.

• Pulling away when relationships become emotionally close.

• Repeatedly questioning whether someone genuinely cares about them.

Childhood emotional maltreatment has also been associated, on average, with somewhat poorer romantic-relationship well-being in adulthood.

These findings describe population-level associations—not an individual's destiny.

People with difficult childhoods can and do build safe, secure and fulfilling relationships.

6. Your Self-Worth May Become Connected to What You Do for Other People

Some people grow up receiving attention primarily when they achieve, help, perform well, behave correctly or take care of others.

As adults, slowing down can feel uncomfortable.

You might notice:

I feel guilty resting.

I always need to be productive.

I don't know how to ask for help.

I feel valuable when people need me.

I feel selfish when I prioritize myself.

You may become incredibly capable while quietly feeling exhausted.

Sometimes therapy involves exploring an unfamiliar question:

Who are you when you are not performing, helping, fixing or taking care of someone else?

7. Conflict May Feel Much Bigger Than the Present Situation

A disagreement with your partner may objectively be about dishes, plans or communication.

But emotionally, your response may feel enormous.

You might freeze.

Immediately apologize.

Shut down.

Become defensive.

Feel terrified that the relationship is ending.

Or spend the next six hours replaying everything you said.

Sometimes our reaction is influenced not only by what is happening now, but by what similar experiences have meant to us before.

Understanding this does not mean excusing harmful behaviour or blaming everything on childhood.

Instead, it can help you become curious:

“What happens inside me when conflict begins?”

8. You May Have Difficulty Knowing What You Actually Want

If you spent years adapting to other people's expectations, you may become very good at answering:

What does everyone else need from me?

and surprisingly unsure how to answer:

What do I want?

This can show up in relationships, careers, parenting, friendships and everyday decisions.

You may look to other people for reassurance before trusting yourself.

You might know what you should want but feel disconnected from what actually matters to you.

Reconnecting with your identity can therefore become an important part of healing.

9. You Can Understand Your Childhood and Still Be Affected by It

One thing I often see people struggle with is believing that acknowledging harm means blaming their parents or denying everything good about their upbringing.

Those things do not have to be mutually exclusive.

You can understand that your parents had their own trauma.

You can recognize cultural, financial or generational pressures they experienced.

You can love them.

You can remember good experiences.

And you can still acknowledge that certain experiences affected you.

Understanding someone's behaviour does not require pretending it had no impact.

“But Other People Had It Worse”

Pain does not need to win a competition before it becomes worthy of attention.

Research on childhood adversity also does not suggest that everyone responds identically to the same experience.

Genetics, relationships, community resources, supportive adults, socioeconomic circumstances, later experiences and many other factors can influence outcomes.

Recent research on resilience following childhood maltreatment reinforces that people vary considerably in how they adapt following difficult childhood experiences.

Your history can influence you without defining you.

Childhood Trauma Does Not Mean You Are Destined to Struggle

This may be one of the most important points.

Research consistently finds associations between adverse childhood experiences and increased risk of later mental-health difficulties.

For example, a 2025 systematic review and meta-analysis of 62 prospective studies found childhood adversity was associated with increased odds of adult PTSD, anxiety, depression and several other mental-health outcomes.

A separate 2026 meta-analysis found a dose-response relationship, meaning that greater cumulative childhood adversity was associated with greater average risk of mental-health difficulties.

But risk is not destiny.

These findings describe statistical patterns across large groups of people.

They cannot tell us what will happen to one individual.

Many people who experience childhood adversity demonstrate significant resilience, develop meaningful relationships and build fulfilling lives.

Understanding your past is not about deciding that everything is because of your childhood.

It is about gaining more context for patterns that may previously have felt confusing.

Sometimes the Behaviours You Want to Change Once Helped You Cope

This can change the way we look at ourselves.

Instead of:

“Why am I like this?”

you might begin asking:

“When did I learn that I needed to do this?”

People-pleasing may have helped reduce conflict.

Shutting down may have helped you cope when expressing yourself did not feel safe.

Hyper-independence may have developed when depending on others felt unreliable.

Constantly monitoring other people's emotions may have helped you anticipate what was coming next.

These patterns may no longer be helping you in the way they once did.

But understanding their possible function can allow us to approach change with curiosity instead of shame.

What Can Healing Look Like?

Healing does not necessarily mean forgetting your childhood, confronting your parents or repeatedly retelling every painful thing that happened.

It can involve learning to understand how earlier experiences continue to influence your present life while developing different ways of responding now.

Depending on the person, therapy might include:

• Recognizing patterns without judging yourself for having them.

• Learning ways to respond to difficult emotions.

• Understanding triggers and emotional responses.

• Strengthening boundaries.

• Practising expressing needs.

• Developing greater self-compassion.

• Rebuilding trust in your own judgment.

• Exploring beliefs you developed about yourself and relationships.

• Identifying your values and the kind of life you want to build now.

• Learning that disagreement does not always mean danger or rejection.

The goal is not to erase your past.

It is to help your past have less control over how you get to live in the present.

Counselling for Childhood Trauma and Its Impact in Adulthood

You may understand exactly where some of your patterns came from and still feel stuck repeating them.

Insight can be an important beginning, but knowing why something happens does not always automatically change what happens next.

At Flor Counselling, I provide virtual trauma-informed counselling across Alberta for adults who are navigating the lingering impacts of adverse childhood experiences, trauma, anxiety, harmful relationships, people-pleasing, difficulty setting boundaries, low self-worth and challenges trusting themselves.

Together, we can explore how your experiences have shaped the way you think, feel and respond while working toward patterns that better reflect who you are and how you want to live today.

You do not need to have your entire childhood figured out before beginning.

Sometimes the starting point is simply:

“I know these patterns are affecting my life, and I want to understand them differently.”

References & Further Reading

Centers for Disease Control and Prevention. (2026). About adverse childhood experiences.
https://www.cdc.gov/aces/about/index.html

Annor, E., Pollak, M., & Ramasamy, D. (2026). Cumulative adverse childhood experiences and risk of mental disorders: A systematic review and meta-analysis. Acta Psychologica, 266, 106954.
https://doi.org/10.1016/j.actpsy.2026.106954

Thurston, C., Murray, A. L., Franchino-Olsen, H., Silima, M., Hemady, C. L., & Meinck, F. (2025). Prospective longitudinal associations between adverse childhood experiences and adult mental health outcomes: Systematic review and meta-analysis. Trauma, Violence, & Abuse.
https://doi.org/10.1177/15248380251358223

Amini-Tehrani, M., Mazidi, M., Ranjbar, S., Ohan, J. L., Weinborn, M., & Naragon-Gainey, K. (2026). Meta-analysis of associations between childhood emotional abuse and adulthood emotion regulation. Clinical Psychology Review, 128, 102778.
https://doi.org/10.1016/j.cpr.2026.102778

Li, S., Ma, Y., Cao, X., Liu, J., Qi, Y., & Chen, X. (2026). Childhood maltreatment and adult attachment: A three-level meta-analytic review. Trauma, Violence, & Abuse.
https://doi.org/10.1177/15248380261455767

Fares-Otero, N. E., et al. (2025). Child maltreatment and resilience in adulthood: A systematic review and meta-analysis. Psychological Medicine.
https://doi.org/10.1017/S0033291725001205