As mindfulness meditation gains popularity worldwide, researchers are investigating both its benefits and the potential adverse effects that some practitioners may experience.
Mindfulness meditation has surged in popularity in the United States and globally over the past few decades, with its incorporation into various aspects of daily life including public schools, workplaces, and healthcare settings. Apps such as Headspace, Calm, and Plum Village, inspired by the teachings of Vietnamese Buddhist monk Thich Nhat Hanh, have facilitated this trend, helping users to develop consistent meditation practices aimed at reducing stress and enhancing sleep quality.
While numerous studies document the advantages of mindfulness in alleviating stress, anxiety, and depression, a growing body of research indicates that some practitioners experience adverse effects. These can include heightened anxiety, emotional distress, the resurfacing of painful memories, and dissociation, which is characterized by a feeling of detachment from oneself or one’s surroundings.
Although the majority of mindfulness practitioners do not encounter enduring issues, researchers are increasingly focused on understanding the reasons behind these experiences in a minority of individuals. As a scholar of Buddhism, I have delved into traditional contemplative practices while also following the expanding scientific research on their effects. It appears that some confusion may stem from the difference in expectations between Buddhist meditation practices, which acknowledge potential difficulties, and the contemporary portrayal of mindfulness primarily as a tool for relaxation and stress reduction.
The Scientific Debate
There exists ongoing debate among scientists regarding the classification of adverse effects associated with mindfulness practices. Some researchers differentiate between temporary discomfort—such as anxiety or difficult emotions experienced during meditation—and lasting harm that may exacerbate mental health symptoms. Others adopt a broader perspective, considering a wider range of challenging experiences that may arise during or after meditation, including intrusive thoughts and persistent emotional distress.
A 2017 survey of meditation practitioners revealed that about 25% reported unwanted effects, such as anxiety and unsettling thoughts, although most indicated these were temporary and did not necessitate medical intervention. In a separate widely cited study from the same year, researchers interviewed 60 experienced Buddhist meditation practitioners who described challenges linked to their practices, including severe anxiety, traumatic memories, altered perceptions, and difficulties in managing daily life.
Further, a 2021 study of meditators in the United Kingdom found that 6% to 14% of participants reported lasting effects, including feelings of being constantly on edge or detached from their surroundings. While some participants viewed these experiences as valuable components of their meditation journey, others found them distressing and disruptive.
The Buddhist Perspective
Many individuals who seek out mindfulness practices today do so with the expectation of stress relief and relaxation. However, in Buddhist traditions, meditation serves a broader array of purposes. Buddhist texts often present meditation as a means to confront uncertainties, grief, mortality, and the impermanence of life. For instance, the Pali canon, the earliest collection of Buddhist texts, includes the “Maraṇasati Sutta,” which urges practitioners to reflect on the inevitability and unpredictability of death. Another text, the “Upajjhatthana Sutta,” guides readers to contemplate aging, illness, and death while emphasizing personal responsibility for one’s actions.
Through meditation, practitioners are encouraged to face the realities of human existence, with the understanding that difficult emotions may arise not as indicators of failure but as integral aspects of the meditative process. This approach is often referred to as engaging with these reflections fearlessly.
Understanding Difficult Experiences
The question of why some individuals encounter difficulties during meditation while others do not may hinge on the context in which mindfulness practices are undertaken. In clinical settings where mindfulness is integrated into treatment plans, experiences such as temporary sadness or anxiety may be viewed as part of the process of addressing difficult emotions, rather than harmful outcomes.
Clinical psychologist Willoughby Britton clarifies this distinction, asserting that temporary distress can be a natural part of treatment, but may be deemed an adverse effect if it persists, worsens, or significantly impairs daily functioning. Other scholars draw comparisons between mindfulness and practices like psychotherapy, exercise, and medication, positing that discomfort following exercise, though unpleasant, does not inherently signal harm.
The Importance of Guidance
This distinction between expected discomfort and lasting harm resonates with long-standing principles in Buddhist traditions. Difficult experiences are not universally interpreted as signs of failure; rather, they are often viewed as steps in the learning process associated with meditation. In traditional Buddhist practice, meditation is typically taught by experienced instructors, and practitioners are encouraged to engage within a supportive community.
Modern mindfulness practices, however, often emphasize self-guided learning. This shift can impact how experiences are interpreted and managed, as support systems play a crucial role in navigating challenging moments. Research has indicated that factors such as relationships with teachers, the nature of meditation instructions, and community support significantly influence how practitioners experience and cope with difficulties.
Current Research Trends
The prevailing inquiry among scientists has transitioned from questioning whether mindfulness is effective to exploring for whom it is beneficial and under what conditions. Increasing interest is directed toward implementing safety protocols, individualized approaches, and screening for trauma or mental health histories prior to the commencement of mindfulness training. Some programs now encourage participants to work with trained instructors and adjust or halt practices if they become overwhelming.
Ultimately, it is evident that mindfulness is not a panacea nor is it inherently harmful. While it continues to provide benefits to the majority of practitioners, difficult experiences emerging from mindfulness practices should neither be dismissed nor viewed as failures. For many individuals, engaging with mindfulness apps and self-directed practices is effective, but those who encounter difficulties may find greater benefit from structured programs or guidance from trained instructors.
