As every teenager knows, there's a clear relationship between hormones and acne.

Many low-income teenagers know few people who have made it through college.

Yes, as every teenager knows, feeling blue means having a heavy head.

Unlike the original series, the teenagers don't know they are going to different parents and think it's a holiday trip.

Not many teenagers know what the interior design industry is about.

Even before she heard the new beat, the teenager knew what it would be.

The five teenagers did not know one another well the night of the attacks, and they still do not.

The teenager forced her eyes to focus, saw where she was, and knew the truth.

The teenagers received no other information and did not know who else was participating.

Yet for the last decade, teenagers knew it more as a place to drink and act out.