Noise is one of the biggest reasons why we cannot concentrate and focus properly. So let us tackle it head on. The ideal place to do this will be on a park next to the road. Close your eyes and take a stock of all the sounds around you. Now, pick a sound and concentrate on it, blocking out everything else. After two or three minutes, switch your focus to another sound and concentrate on it, ignoring everything else in turn.

Please refer to the book for more details on this activity.