Try the Keywords Technique. In this simple technique, the only thing you have to do is to find the right keyword on what you are studying or doing and whenever you lose concentration or feel distracted or your mind wanders to something else, start saying that keyword repeatedly in your mind until you come back to the topic at hand. The keyword in this technique is not a single, fixed word but keeps changing according to your study or work. There are no rules to select the keyword and whichever word the person feels that it will bring back his concentration can be used as a keyword.
