get and get

Louisa Ball, from Worthing (UK), has been diagnosed with Kleine-Levin Syndrome - also known as Sleeping Beauty Disease - where sufferers can fall into deep sleeps that can last for weeks. She misses school exams, dance lessons and even missed an entire week's holiday away with the family as she slept the whole way through.

Doctors don't know what causes it, although it is thought it may be related to malfunction of the hypothalamus, the part of the brain that governs appetite and sleep; and there is no definitive treatment for Kleine-Levin Syndrome, although some patients are given stimulant drugs to try and keep them awake.