Alterations in brain and immune function produced by mindfulness meditation.

Objective: The underlying changes in biological processes that are associated with reported changes in mental and physical health in response to meditation have not been systematically explored. We performed a randomized, controlled study on the effects on brain and immune function of a well-known and widely used 8-week clinical training program in mindfulness meditation applied in a work environment with healthy employees.

Methods: We measured brain electrical activity before and immediately after, and then 4 months after an 8-week training program in mindfulness meditation.