Veterans RCT: Hypnotherapy Cuts Cannabis Use | Clear Minds

When researchers set out to help 328 veterans manage chronic pain, they weren't looking for a breakthrough in cannabis use reduction. But that's exactly what they found.

A 2023 randomised controlled trial — published in JAMA Network Open — revealed that veterans treated with hypnotherapy were 82% less likely to be using cannabis daily at six months, compared to those who received only an education-based programme. The findings weren't planned. They emerged from a supplementary analysis, which makes them all the more striking.

About the Study

The trial enrolled 328 US veterans who were living with chronic pain — a population with particularly high rates of cannabis use, often as a way to cope with persistent discomfort. Participants were randomly assigned to one of three 8-week group-based treatments:

• Hypnotherapy (HYP) — structured clinical hypnosis sessions targeting pain perception
• Mindfulness meditation (MM) — guided attention and body awareness practices
• Active education control (ED) — an equivalent amount of group contact and information, but no therapeutic technique

The primary aim was to measure changes in pain intensity and pain-related interference. Substance use wasn't on the agenda. Yet when researchers later analysed the data, the pattern was unmistakable.

What the Numbers Show

At the six-month follow-up point:

• The hypnotherapy group showed an 82% reduction in the risk of daily cannabis use compared to education controls
• The mindfulness group showed an 81% reduction — statistically comparable
• Both effects were adjusted for baseline cannabis use levels, making the results even more meaningful

Neither hypnotherapy nor mindfulness was trying to address cannabis use. The improvements appear to be a downstream effect of treating the underlying pain more effectively.

Why This Finding Matters

Chronic pain and cannabis use are closely linked. Many people — especially veterans — turn to cannabis not because they want to be dependent on it, but because it offers temporary relief when other treatments have failed. It blunts the sharpest edges of persistent pain, reduces anxiety, and can help with sleep.

The problem is that daily use often becomes a cycle: pain drives use, use masks the problem without resolving it, and dependency quietly deepens over time.

What this study suggests is that when the root cause — the pain — is addressed more directly, compensatory behaviour often reduces on its own. Hypnotherapy doesn't ask someone to "just stop using cannabis." It changes the experience of pain at a neurological level, reducing the underlying drive to seek relief through other means.

This aligns with earlier neuroscientific research showing that hypnosis alters activity in the anterior cingulate cortex — a brain region central to how pain is processed and felt. When that processing shifts, so does the need to manage it.

What It Means for Hypnotherapy

This study adds an important dimension to the evidence base. Most hypnotherapy research focuses on what the therapy is directly targeting — pain, anxiety, sleep, specific symptoms. This trial shows that hypnotherapy can produce meaningful benefits in areas it wasn't even aimed at.

That's clinically significant. It suggests that someone starting hypnotherapy for chronic pain might find their cannabis use drops without consciously trying. Someone using it for anxiety might find they're turning to alcohol less. The mechanism appears to be consistent: when the nervous system feels genuinely safer and more regulated, the need for external coping strategies naturally reduces.

For healthcare professionals and patients alike, this represents a potentially powerful — and still underused — lever in supporting recovery from habitual substance use.

How Clear Minds Approaches This

Clear Minds isn't a clinical addiction programme. But the evidence points to something important: when your mind and body find a deeper sense of calm, the pull towards habits that once served as relief tends to ease on its own.

The Clear Minds app draws on clinically informed hypnotherapy techniques — the same foundations used in the veteran trial — to help reduce stress, improve sleep, manage discomfort, and quieten an overactive nervous system. For some users, this has produced unexpected knock-on effects: less craving, greater emotional stability, and fewer moments where they feel compelled to reach for something to take the edge off.

It doesn't happen overnight. But the science is increasingly clear: address the underlying tension, and the surface patterns often shift with it.