Effects from excessive drugs or alcohol also play an important part in causing tinnitus. Protect and preserve are two keywords for your good hearing. Look at the incredible anatomy of how we hear. It 's self-explanatory. It's all we have for verbal communication.
Sound waves enter the ear canal and vibrate the ear drum.
It's a chain reaction. Whispers are gratefully received. Loudness is not. The amount of current is adjusted to the patient's own comfort level. Mind over matter.