Moving Through It: How Physical Fitness Helps You Heal From Trauma

Moving Through It: How Physical Fitness Helps You Heal From Trauma

By Mark G. Agresti, MD · Integrative Psychiatry · Palm Beach, FL

People often ask whether exercise can help them forget what happened to them. It's an understandable hope. When a memory keeps showing up uninvited—in nightmares, in a tight chest at a family gathering, in a flash of anger that seems to come out of nowhere—wanting it gone is a natural response.

Here is the honest answer: exercise does not erase traumatic memories, and no responsible treatment promises that. What physical movement can do is change how the body and brain carry those memories—turning down the alarm system, restoring a sense of control, and making the past feel like the past instead of something happening right now. For many people, that shift is the difference between surviving each day and actually living it.

Why "Forgetting" Isn't the Goal

In post-traumatic stress, the problem isn't simply that a memory exists. It's that the memory is stored with an emergency tag still attached. The brain's threat detector, the amygdala, keeps firing as if the danger is current, while the parts of the brain that put experiences into context—the hippocampus and prefrontal cortex—struggle to file the event as "over."

Healing means the memory becomes something you remember rather than something you relive. You can recall it without your heart pounding, without losing hours, without needing alcohol or avoidance to get through the day. That shift is achievable, and physical fitness is one of the most accessible tools for getting there.

How Movement Changes the Trauma Response

1. It resets the nervous system

Trauma leaves many people stuck in fight-or-flight or in shutdown. Regular exercise improves heart rate variability, a marker of a flexible, resilient nervous system, and helps normalize stress hormone patterns over time. The body relearns how to rise to a challenge and then return to calm.

2. It makes arousal feel safe again

A racing heart, heavy breathing, and sweating are the same sensations that accompany panic and flashbacks. During exercise, a person experiences those sensations in a setting they chose and control. Over weeks, the brain begins to decouple "my heart is pounding" from "I am in danger." Clinicians call this interoceptive exposure, and it happens naturally on a run, a hike, or a dance floor.

3. It supports the brain's filing system

Aerobic exercise increases brain-derived neurotrophic factor (BDNF), a protein that supports the growth and health of neurons, especially in the hippocampus—the region responsible for putting memories into time and context. A healthier hippocampus helps the brain file a traumatic memory as something that happened then, not now.

4. It improves sleep, mood, and cravings

Better sleep reduces nightmares and irritability. Exercise also has well-established antidepressant effects and can reduce cravings for alcohol and other substances, which many people use to numb trauma symptoms.

5. It restores agency

Trauma is, at its core, an experience of powerlessness. Getting stronger, running farther, or mastering a skill is a lived counter-message: my body is capable, and I am in charge of it.

6. It reconnects you with other people

Trauma tends to isolate. A running club, a martial arts class, a dance group, or a weekly hike with a friend adds routine, belonging, and support—and social connection is one of the strongest protective factors against lasting PTSD.

Getting Started: A Trauma-Informed Approach to Fitness

• Start low and slow. Ten to twenty minutes of walking counts. Consistency matters more than intensity.
• Choose rhythm. Rhythmic, repetitive movement—walking, running, swimming, cycling, dancing—tends to be especially regulating.
• Pay attention to the body, gently. Notice breath, feet, and surroundings. If memories surface, slow down rather than push through.
• Move with others when you're ready. Group or partner activity adds connection, which is itself protective against PTSD.
• Get outside. Time in nature, near water, and in sunlight supports mood and sleep.
• Watch for overtraining. Some trauma survivors use extreme exercise to avoid feelings. If workouts feel compulsive or punishing, talk to your clinician.
• Pair it with treatment. Exercise works best alongside trauma-focused psychotherapy and, when appropriate, medication.

The Bottom Line

Physical fitness won't make trauma disappear, and it shouldn't have to. What it can do is calm an overactive alarm system, help the brain place painful memories firmly in the past, rebuild trust in your own body, and reconnect you with the people and activities that make life feel like yours again. That's not forgetting. It's healing.

If you are in crisis or thinking about harming yourself, call or text 988 (Suicide & Crisis Lifeline) or call 911.

This article is for educational purposes and is not a substitute for individualized medical advice. Consult a qualified clinician before beginning a new exercise program, particularly if you have medical conditions.