Just seven days of intensive meditation and mind-body practices produced measurable changes in participants’ brains, blood chemistry, immune activity, metabolism, and natural pain-relief systems, according to a recent study.

The Groundbreaking Study

A team of researchers at the University of California San Diego conducted a comprehensive study on the effects of intensive meditation and mind-body practices on the brain and body.

The study involved 20 healthy adults who participated in a 7-day residential program led by neuroscience educator and author Joe Dispenza, D.C. The retreat included daily lectures, approximately 33 hours of guided meditation, and group healing practices.

The researchers used a variety of techniques to measure the effects of the meditation and mind-body practices, including functional magnetic resonance imaging (fMRI), blood samples, and laboratory experiments.

Measurable Changes

The researchers reported several notable differences following the retreat.

• Brain activity became less pronounced in regions associated with internal mental chatter during meditation, indicating more efficient brain function.
• Evidence of increased neuroplasticity emerged in laboratory experiments, where cells exposed to plasma collected after the retreat showed increased glycolytic (sugar-burning) metabolism.
• Metabolism changed as well, with cells exposed to plasma collected after the retreat showing increased glycolytic metabolism.
• The retreat also appeared to activate the body’s own pain control mechanisms, with blood concentrations of endogenous opioids increasing after the program.
• Researchers also detected changes in immune signaling, with both inflammatory and anti-inflammatory signals increasing at the same time.
• Small RNA molecules and patterns of gene activity in the blood also changed, particularly in biological pathways associated with brain function.

Mystical Experiences and Brain Connectivity

Researchers were also interested in the subjective experiences participants had while meditating.

The volunteers completed the Mystical Experience Questionnaire (MEQ-30), which is designed to measure experiences involving feelings of unity, transcendence, and altered consciousness.

Average scores increased significantly, from 2.37 before the retreat to 3.02 afterward.

People who reported stronger mystical experiences also tended to show greater biological changes, including increased integration of activity between different regions of the brain.

Similarities to Psychedelic Brain States

The researchers also found similarities in brain activity between intensive meditation and psychedelic experiences.

The study suggests that intensive meditation may be capable of producing some of the same types of neural connectivity associated with psychedelic experiences, despite participants not taking psychedelic drugs.

The researchers said that this finding is significant because it suggests that very different experiences may sometimes engage overlapping brain processes associated with altered states of consciousness.

Implications for Health and Pain

The findings of the study offer new clues about how mental practices and conscious experiences may influence physical biology.

Increased neuroplasticity could potentially support processes involved in mental health, learning, emotional regulation, and resilience to stress.

Changes in immune activity could also prove important if future research shows that these effects are reliable and clinically meaningful.

The increase in endogenous opioids is especially interesting for pain research, as these chemicals are part of the body’s built-in pain-regulating system.

The combination of practices used during the retreat could eventually lead to new treatments for pain and other health conditions.

Overall, the study provides a potential biological framework for understanding how non-drug mind and body interventions might support health and well-being.