First understand what is concentration our mental energy is generally flowing towards many thoughts and many emotions on every thought and emotions you reduce your mental energy because with thought and emotions .you waste your mental energy behind every thought and emotions and you are doing that continuously. So many thoughts are flowing in your mind and you are not aware about it.
You also waste your energy by different organs of your body remember when you travel buy car and you are sitting just behind the back seat of your car you are doing nothing after some hour of travelling you feel very tired that is because continuously watching outside the car.Your energy is flowing outside by your eyes on different objects and thomughts about it so you feel tired
Concentration is the detaching of mind from thoughts desires and emotions by just be aware of that because your success in any field depends upon quantum of your concentration all yoga and meditation techniques works on how to develop concentration
Simple way to develop concentration
There are several methods to develop your concentration but here we will discuss simple way to develop your concentration memory and mind power because all these correlate and keys of success in business politics and in social and spiritual life for these things you have to develop your concentration
Your mind and breath are related to each other . Suppose when you are in worry and anger your breath automatically become fast or by horrible thoughts your breath become very fast so by controlling your breath you can control your mind your thoughts and your emotions and concentrate bin better way to your study or in your business.So for this you have to practice breathing exercise in indian yoga science that is called pranayama
Just sit in quite place and be in comfortable posture and inhale deeply and retain breath inside for few seconds and than exhale and retain breath outside for few seconds.Duration of retaining the breath should be in your comfort zone.During practice of this breathing exercise be witness of your thoughts not try to stop them and not feel guilty about any thought you just have to watch them as a spectator you can practice that for 15 to 20 minutes daily after some time of practice you will feel amazing effects of that