For my personal opinion, music is really the excellent and essential thing to life. When you want to be able to concentrate on the textbook longer hours, turning the relaxing music on softly while reading will help you to read longer hours than without the music. If you are the kind of the person who is easily and often depressed or feeling insecure for un-known reasons (you can see from Vincent Van Gogh's famous self-portrait paintings, they showed that there were some kinds of waves or rays around him affect his emotions and appearance and characters), try to listen to only the cheerful music and it will help you a lot: don't accumulate the depressed emotion, it can pull you down rapidly, however, you have to be the person who appreciate the music and the music will be able to heal you. The method to appreciate the music is to listen to many popular songs of various singers very often and it will make you gradually appreciate the music automatically. After you appreciate it, use your own feeling judgment which kind of music to heal you, for example, if you cannot sleep at night, etc, listen to many types of relaxing music rhythms and instruments and select the one that helps you to be able to sleep; not all kinds of relaxing music will help you to sleep, for me, I cannot sleep at night because of the headache, the Chinese instrumental music relaxing melody is good for me. Some kinds of music instruments and songs can annoy you or create more ache also. You have to test with various kinds of music to find out which one is the best for you and for what purpose of healing. By the way, listening or watching the funny media can also raise your spirits when you are down.