A 5 day course of Mindfulness Training of just 30 minutes per day showed improved cerebral blood flow in the left anterior cingulate cortex and insula, brain areas critical for self regulation.
The abstract of the research published in Frontal Psychology reads:
Asymmetry in frontal electrical activity has been reported to be associated with positive mood. One form of mindfulness meditation, integrative body-mind training (IBMT) improves positive mood and neuroplasticity.
The purpose of this study is to determine whether short-term IBMT improves mood and induces frontal asymmetry. This study showed that 5-days (30-min per day) IBMT significantly enhanced cerebral blood flow (CBF) in subgenual/adjacent ventral anterior cingulate cortex (ACC), medial prefrontal cortex and insula.
The results showed that both IBMT and relaxation training increased left laterality of Cerebral Blood Flow, but only IBMT improved Cerebral Blood Flow in the left ACC and insula, critical brain areas for self-regulation. (1)
(1) Front Psychol. 2015 Feb 26;6:212. doi: 10.3389/fpsyg.2015.00212. eCollection 2015. Short-term meditation increases blood flow in anterior cingulate cortex and insula Tang YY, Lu Q, Feng H, Tang R, Posner MI.