Children and adolescents need at least nine hours of sleep per night.

Earlier research had shown that adolescents needed about nine hours a night - more than adults or younger children.

Depending on the severity of the condition, some adolescents may need back braces while their bones mature.

The idea is that adolescents need stable relationships with teachers who understand each student's intellectual and personal problems.

They state in their book that adolescents "need to find out how their bodies perform sexually."

Many experts say that adolescents and adults will probably need two shots.

"All adolescents and young adults need to experiment with being different and being themselves."

All adolescents ages 11 or 12 need one Tdap shot.

The therapy which these children and adolescents need might be more intense and maybe even different from looking at the disorders traditionally.

"We're going to come out in strong support of them, because adolescents need to rehearse how to say no to sexual activity."