10 Causes of Hypersomnia
Cause #4: Prader-Willi Syndrome
Prader-Willi syndrome is a genetic condition here there is loss of function of some genes. Newborns with Prader-Willi syndrome often experience poor feeding, weak muscles, and slow development. The affected person also often feels hungry which results in obesity and type 2 diabetes. Some patients may have moderate intellectual or behavioural issues.
The appearance of those with Prader-Willi syndrome often has a narrow forehead, small hands and feet, light skin color, and unable to have children. In childhood, there is often excessive sleeping. The obesity also contributes to obstructive sleep apnea which in turn, is another factor for excessive daytime sleepiness.
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