Neuromodulation

Initially described as early as the Seven Years War (1756-63), physicians have documented excessive physical exhaustion, anger, irritability, and depression, primarily among soldiers.

Tinnitus is a perceived sound that only you can hear. It might be a ringing, buzz, or tone. It arises not in your ear but in your brain. And because only you can hear it, it is subjective, a symptom, not a sign, so diagnosis can be challenging.