Authoritarian regimes are also sometimes subcategorized by whether they are personalistic or populist. Personalistic authoritarian regimes are characterized by arbitrary rule and authority exercised mainly through patronage networks and coercion rather than through institutitions and formal rules..
Fluid accumulation is the most common cause of conductive hearing loss in the middle ear, especially in children. Major causes are ear infections or conditions that block the eustachian tube, such as allergies or tumors.
Another common cause of hearing loss is exposure to noise. We all lose our hearing sooner or later. Hearing loss is a natural consequence of getting older. Our hearing ability worsens from our 30s or 40s and onwards and when we reach our 80s, more than half of us suffer from significant hearing loss.