There's a related phenomenon that I've experienced. Some of my best insights into problems have come to me when I was either very tired, drowsy, or slightly il

There's a related phenomenon that I've experienced. Some of my best insights into problems have come to me when I was either very tired, drowsy, or slightly ill - like running a mild temperature. I wonder whether this is because the condition knocks out the foreground process, while not being drastic enough to knock you out fully.