FOUR FACTS ABOUT YOUTH MARKETS

-54% of teens believe they are getting the right amount of exercise, says Scarborough Research.

-60% of 8-14 year olds believe it's easy to maintain good grades in school while playing sports, report SI Kids and C&R Research.

-The largest increase in mobile phone ownership among teens occurs at age 14, according to the Pew Internet & Life Project.

-Fifteen-year-olds are more than twice more likely to have visited a library than museum during the past three months (62% vs. 24%), finds Best Buy