that s a timeless song. the euro rhythmics. does that remind you of your teenage years? how long ago was that for both of us? 30 years. well, teenagers, we remember those busy years. teenagers are busy people between school,ive social lives, sports and sometimes part time jobs, many are just not getting enough sleep. a new study shows they can pay a big price for that. abc s senior medical contributor dr. tim johnson has more. reporter: almost 20% of u.s. adolescents have trouble sleeping or are sleep deprived. a study in the canadian medical association journal looked at more than 4,000 adolescents. those who had trouble sleeping had a higher body mass index, larger waist size, higher cholesterol levels, and higher blood pressure. those who just didn t get enough sleep had higher body mass index and larger waist size. a high sleep disturbance score was also associated with higher