Symptoms of<unk> , which occur in four stages, generally appear eight to ten years after an individual experiences repetitive mild<unk>  brain injuries. First-stage symptoms are confusion, disorientation, dizziness, and headaches. Second-stage symptoms include memory loss, social instability, impulsive behavior, and poor judgment. Third and fourth stages include progressive dementia, movement disorders, hypomimia, speech impediments, sensory processing disorder, tremors, vertigo, deafness, depression and suicidality. Additional symptoms include dysarthria, dysphagia, cognitive disorders such as amnesia, and ocular abnormalities, such as ptosis. The condition manifests as dementia, or declining mental ability, problems with memory, dizzy spells or lack of balance to the point of not being able to walk under one's own power for a short time and/or Parkinsonism, or tremors and lack of coordination. It can also cause speech problems and an unsteady gait. Patients with<unk>  may be prone to inappropriate or explosive behavior and may display pathological jealousy or paranoia.
Chronic traumatic encephalopathy
Parkinson's disease
Wernicke encephalopathy
Alzheimer's disease
Powassan encephalitis
Posterior reversible encephalopathy syndrome
Toxic encephalopathy
Viral encephalitis