TV Damages Future Activity for Toddler Viewers: The amount of TV watched by toddlers can negatively affect the child's future.
Looking at over 1,300 children in a longitudinal study researchers found those children who watched increased amounts of television when they were 29 months old, had "reduced jumping ability in second grade and bigger waist circumferences in fourth grade."
Additionally, other research has shown increased television consumption is "associated with less engagement in classroom activities, less weekend exercise and a greater chance of being picked on by classmates in fourth grade." Aside from this, more TV also correlates with increased waist size.
"The American Academy of Pediatrics recommends that toddlers watch no more than two hours of television per day" via Yahoo News and LiveScience