It’s much more than appears at first glance. People get through the ears a huge amount of information. It can provide both positive and negative effects on humans. People with hearing problems tend to be hostile, sluggishness, depression, temper, distrust, and even psycho-motor delay. On the other hand, a person may use sound to their advantage. It is very important to learn how to organize the sound space around you. This will help not only to control emotions but also control the flow of mental energy and physical state. This short video has very impressive examples.