perhaps as simple as wax against the eardrum, or as serious as a tumour on the hearing nerve. otosclerosis (fixation of the tiny stirrup bone in the middle ear) can produce tinnitus; so can meniere's disease. a major cause of tinnitus is exposure to excessive noise, e.g. chain saws, machinery, rock concerts...
saint-gobain: reasons to believe in the future in , saint-gobain is celebrating its th anniversary. more publications " blog building our future together saint-gobain enjoys a unique, first-of-its-kind partnership with youthbuild usa. together, we have helped hundreds of youth nationwide to pick-up hammers, saws...