Teens staying up late may suffer consequences

Teens know they burn their energy for the next day by staying up late -- finishing homework they put off or glued to TV and computer screens, playing video games or surfing the internet.  But new research shows that longer-term consequences, in school and in their health.  "Going to school tired made me fall behind in my English class.  I go to sleep usually around midnight and regret it the next morning."  Read more at Voicewaves.