How long should you be trained in meditation to get benefits?
Focus on Alternative and Complementary Therapies May 12, 2011 Isabelle Marc, Fadel Zeidan, SK Johnson
Zeidan F, Johnson SK, Gordon NS, Goolkasian P. Effects of brief and sham mindfulness meditation on mood and cardiovascular variables. J Altern Complement Med 2010; 16: 867–73.