Even short-term meditation can boost concentration

Even a small number of meditation sessions can have a beneficial effect on people's cognition. Researchers at the University of North Carolina studied 49 students. Half of them listened to an audio book while the other half received meditation training made up of four daily, 20-minute sessions. Both groups' mood improved but even after this short course of mindfulness training the participants who meditated showed 'significant improvement in their critical cognitive skills.'

You can find out more about this research at

http://psychcentral.com/news/2010/04/19/short-term-meditation-is-beneficial/12929.html