Accelerated Resolution Therapy Side Effects: What to Expect and When to Worry

Understanding ART Side Effects

Accelerated Resolution Therapy (ART) is a rapid, evidence-based trauma treatment that most people tolerate well. However, any therapy that processes traumatic memories can produce temporary side effects as your brain adjusts to the changes. Knowing what to expect helps you distinguish normal post-session experiences from signs that something needs attention.

Common Side Effects

The following side effects are reported by some clients after ART sessions. Not everyone experiences them, and they typically resolve on their own within a day or two.

Vivid or Unusual Dreams

This is the most commonly reported side effect. Because ART engages neurological processes similar to REM sleep, it is not surprising that your dream activity may increase or change temporarily after a session. Some people report unusually vivid dreams, while others notice dreams related to the material processed in therapy.

Temporary Increase in Anxiety or Emotional Sensitivity

You may feel more emotionally reactive than usual for a day or two after a session. Things that would not normally bother you might feel more intense. This typically passes as your brain integrates the new information.

Emotional Fatigue

Processing traumatic material is mentally demanding, even when the session itself feels manageable. Many people report feeling unusually tired or drained after an ART session. This is normal and a good reason to keep your schedule light on treatment days.

Sleep Disruption

Some clients have difficulty falling asleep the night after a session, while others sleep more than usual. Both responses are within the normal range.

Headache or Lightheadedness

The sustained eye movements used in ART can occasionally cause mild headache or lightheadedness, similar to eye strain. This typically resolves within a few hours.

48-72 hours

Less Common Side Effects

These occur in a smaller number of clients and usually do not require intervention unless they persist:

• Temporary increase in intrusive thoughts about the traumatic material
• Feeling emotionally raw or vulnerable for several days after a session
• Physical sensations such as tingling, muscle tension, or warmth in areas of the body associated with stored trauma

When Side Effects Are Normal vs. When to Contact Your Therapist

Most post-session experiences are part of the normal processing cycle. However, there are situations where you should reach out to your therapist:

Who Should NOT Do ART

ART is well-tolerated by most people, but there are clinical situations where it is contraindicated:

Absolute contraindications:

• Active psychosis or schizophrenia (the imagery-based techniques may worsen symptoms)
• Severe dissociative disorders such as Dissociative Identity Disorder (requires stabilization first)
• Uncontrolled seizure disorders (eye movements may trigger seizures in susceptible individuals)
• Active substance intoxication (cognitive impairment prevents effective participation)

Relative cautions (not absolute contraindications, but require discussion with your therapist):

• Pregnancy, particularly in later stages, due to potential emotional activation
• Recent major surgery or acute medical conditions
• Certain neurological conditions affecting eye movement or visual processing

How to Minimize Side Effects

There are practical steps you can take to reduce the likelihood and intensity of post-session effects:

1. Get adequate sleep the night before. Arriving well-rested helps your brain process more efficiently.
2. Keep your schedule light after sessions. Avoid demanding work, difficult conversations, or major decisions for the rest of the day.
3. Stay hydrated. This is simple but helps with headache and general well-being.
4. Have a self-care plan ready. Know what helps you feel grounded: a walk, a warm bath, music, time with a pet.
5. Eat something after your session. Emotional processing can deplete energy. A balanced meal helps.
6. Limit alcohol and caffeine. Both can amplify anxiety and disrupt sleep during the processing window.

What About Long-Term Effects?

Research on ART has not identified any significant long-term negative effects. Follow-up studies at 2, 6, and 12 months consistently show that treatment gains are maintained and side effects do not persist. The changes made during ART sessions appear to be stable over time.

Have questions about ART therapy?

Talk to a qualified ART therapist who can address your specific concerns about treatment.

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