What are the diseases or disorders caused by problems with neurons or neuroglia?

Problems with the neurons or neuroglia can cause a wide range of diseases and disorders including but not limited to: 

• Alzheimer’s disease – characterized by confusion about place or time, disruptive memory loss, and difficulty planning or executing tasks
• Parkinson’s disease – symptoms include balance and posture problems, shuffling movements, rigid muscles and tremors
• Schizophrenia – characterized by inability to differentiate between reality and imagination and unregulated, inappropriate emotional responses
• Attention Deficit Hyperactivity Disorder (ADHD) – marked by inattention, impulsivity, excessive hyperactivity, and executive functioning difficulties
• Major depressive disorder – marked by loss of enjoyment in activities, feelings of worthlessness, depressed mood, and suicidal thoughts lasting for extended periods of time
• Epilepsy – characterized by recurrent seizures