It ended when metal tools became widespread (in the Copper Age or Bronze Age; or, in some geographical regions, in the Iron Age). The Neolithic is a progression of behavioral and cultural characteristics and changes, including the use of wild and domestic crops and of domesticated animals.
A single exposure to a sudden extremely loud noise can also cause tinnitus. A variety of other conditions and illnesses can lead to tinnitus, including: Blockages of the ear due to a buildup of wax, an ear infection, or rarely, a benign tumor of the nerve that allows us to hear (auditory nerve)
Tinnitus is noises in the head, not related to any psychiatric condition. The noise can be heard anywhere in the head or in one or both ears. So far there are no scientific proven cure for tinnitus. Imagine a constant ringing, buzzing or whistling in your ear, 24 hours a day. It is called tinnitus. You never get a break. It is always there. Nobody else but you can hear the noise because it does not come from any external source.