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Neurocognitive diosrders and mental diosrders due to general medical condition, mental retardations, neurodevelopmental disorders

Neurocognitive Disorders (NCDs) are acquired conditions characterized by a decline in cognitive functions such as memory, attention, and reasoning. Common examples include dementia (e.g., Alzheimer's disease), delirium, and cognitive impairment due to brain injury or disease. Mental Disorders Due to a General Medical Condition arise as a direct physiological result of a medical illness, such as depression from hypothyroidism or psychosis from a brain tumor.
Obesity hypoventilation syndrome
.. major symptoms include daytime sleepiness and neurocognitive dysfunction, poor sleep quality, morning..