A recent study published in the journal Pediatrics suggests that stuttering may not be as detrimental to a child's development as once presumed.
Stuttering occurs in about 11 percent of children up to age 4 -- that's twice as common as previously thought. The study shows that stuttering, while burdensome for some parents and teachers, doesn't threaten a child's emotional development, and many are able to override stuttering's side effects.
The prevailing theory behind the cause of stuttering goes back to cognitive development, not emotional development. While nothing's been proven, language development and thinking skills in children are rapidly progressing from ages 2 to 4, when stuttering is quite common. A child's motor skills, however, are not developing as fast as their cognitive abilities.
Simply put, children who stutter may be thinking faster than they're able to speak.