<http://schema.org/description>
"For most people, the urge to eat a meal or snack comes at a few, predictable times during the waking part of the day. But for those with a rare syndrome, hunger comes at unwanted hours, interrupts sleep and causes overeating."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2014-05-genes-linking-circadian-clock.html>