Understanding Acute Stress Disorder

A guide to acute stress reactions and recovery after trauma.

What Is Acute Stress Disorder?

Acute Stress Disorder (ASD) develops within one month of experiencing a traumatic event and involves symptoms similar to PTSD. It's your mind and body's immediate response to overwhelming stress.

While distressing, ASD is often temporary. With proper support, many people recover without developing long-term PTSD.

Symptoms of ASD

Intrusive symptoms: Distressing memories, dreams, or flashbacks of the trauma.

Dissociation: Feeling detached, in a daze, or that things aren't real.

Avoidance: Avoiding thoughts, feelings, or reminders of the trauma.

Negative mood: Difficulty experiencing positive emotions.

Hyperarousal: Sleep problems, irritability, difficulty concentrating, being easily startled.

Physical symptoms: Rapid heartbeat, sweating, shaking.

Why This Happens

Your nervous system is responding normally to an abnormal event.

The brain hasn't yet processed the trauma as 'past'.

Fight, flight, or freeze responses remain activated.

These reactions were protective during the trauma and take time to settle.

Recovery and Support

Allow time: Many people naturally recover within weeks.

Safe environment: Ensure you're physically safe and supported.

Basic self-care: Rest, eat, and maintain routines as much as possible.

Social support: Connect with trusted people who can listen.

Limit re-exposure: Reduce exposure to trauma reminders in early days.

Early intervention: If symptoms persist, seek professional help promptly.

Trauma therapy: If ASD continues, trauma-focused therapies are effective.

Your reaction is normal. With time and support, most people recover.

Educational self-help, not a diagnosis, treatment or crisis service. If you are in immediate danger, call 999. For UK listening support, call Samaritans on 116 123 or text SHOUT to 85258.

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