1. Effects on hearing loss is divided into 3 characters.- deaf immediately. The stay in the area with too loud, 120 DBA- Echoes temporarily. Happens when you are in a loud volume since 80 DBA up in no time.Permanent - Echoes occur when in the area with large volume for a long time.2. In physiology, such as impact on the circulation of blood, endocrine, reproductive organ, nervous system and malfunction of the system to shrink and squeeze the large intestine. And so on.3. In psychology, such as a nuisance, affecting the rest in sleep. Effects on performance and learning. Disturb the discussion and entertainment industry.
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