<http://schema.org/description>
"Are you up with the birds or burning the midnight oil? Or somewhere in between? The reason why you love getting up early, or hate it, has a lot to do with genetics."^^<http://www.w3.org/2001/XMLSchema#string>
<http://health.howstuffworks.com/mental-health/sleep/basics/early-birds-and-night-owls1.htm>