Clinical & Academic Research

Scientific studies and peer-reviewed research on meditation and mental health effects for readers seeking evidence-based information.

Meditation and mindfulness practices are widely promoted for stress reduction, emotional wellbeing, and mental health support. However, a growing body of research suggests that, for some individuals, these practices may also lead to psychological difficulties or adverse experiences.

The research collected on the page linked to explores a range of meditation-related challenges, including anxiety, emotional dysregulation, dissociation, depression, mania, traumatic memory resurfacing, and psychotic episodes. While many practitioners report positive outcomes, these studies highlight that meditation is not universally beneficial and may affect vulnerable individuals differently depending on personal history, intensity of practice, and the surrounding support environment.

Key Findings and Statistics

A 1992 study of long-term meditators found that:

• 62.9% reported at least one adverse effect following a meditation retreat
• 7.4% experienced profound adverse effects

A 2021 mindfulness study reported that:

• 87% of participants experienced at least one momentary adverse effect during meditation
• 25% experienced negative impacts affecting daily life after the intervention

Research into mindfulness-based programmes found:

• 83% of participants reported at least one meditation-related adverse effect
• 37% reported negative impacts on functioning
• lasting adverse effects occurred in 6–14% of participants

Reported difficulties across studies included:

• increased anxiety and panic
• depressive symptoms
• emotional instability
• dissociation or depersonalisation
• mania and psychosis in vulnerable individuals
• resurfacing traumatic memories
• sleep disturbance and perceptual changes

Several studies also note that adverse effects appear more likely during intensive retreats, prolonged meditation practice, or in individuals with pre-existing psychological vulnerabilities. Researchers have increasingly called for better participant screening, clearer informed consent, improved teacher training, and more rigorous reporting of harms within mindfulness research.

At the same time, many researchers emphasise that meditation can still provide significant benefits when taught appropriately and practised safely. The overall message emerging from the evidence is not that meditation is inherently dangerous, but that it should be approached with the same care, nuance, and clinical responsibility applied to other psychological interventions.