Understanding how tics are suppressed may help some at risk for tic disorders
(PHYSorg.com Medicine & Health)

At least 20 percent of elementary school-age children develop tics such as excessive blinking, throat clearing or sniffing, but for most of those kids, the tics don`t become a long-term problem. Conventional wisdom has held that most tics go away on their own and that only in rare cases do they become chronic or develop into a disorder such as Tourette syndrome.