Why was obesity hypoventilation syndrome named Pickwickian syndrome?

Obesity hypoventilation syndrome was named Pickwickian syndrome after Charles Dickens' character Joe from the novel "The Pickwick Papers." Joe, who is described as overweight and drowsy, suffers from excessive daytime sleepiness and respiratory issues, mirroring the symptoms seen in individuals with this syndrome. The term reflects the association between obesity and hypoventilation, leading to inadequate oxygenation and increased carbon dioxide levels during sleep, similar to the character's lethargic state.