Healing Ourselveswebmd.com/ ... 16:30:36Most U.S. adolescents are
			 falling short on sleep 
			  
				- One in five adolescents get the optimal amount of sleep for
				  their age group (nine or more hours per night).
  
				- Nearly half (45%) get an insufficient amount of sleep (less
				  than eight hours per night).
  
				- High school students are more likely to have a sleep shortfall
				  than those in middle school.
  
			 
Adolescents with sleep shortfalls are more likely to report
			 crankiness, school tardiness, and drowsy driving...