UNDERSTANDING NOISE
Like other measurements, Noise is measured by Decibel (dB). A normal talking conversation is around 60Db as compared to a vacuum cleaner that is measured at approximately 85Db. The increased noise (dB) results in an increased amount of stress for the brain, and muscle (energy) to fend off the noise while multi-tasking to continue with our own activities. The pain threshold for human ear starts at about 125 dB where one will experience a sharp physical pain in the ear however prolonged lowered dB noise can also have the same effect.
