But only recently have health officials learned how prevalent the problem is in poor urban neighborhoods.

The video starts with a large number of people in an urban neighborhood on a very hot summer day.

And many are also moving to the suburbs from urban neighborhoods.

Another plus is the general lack of competition in many urban neighborhoods.

The class started out with all the drawbacks of a school in a poor urban neighborhood.

Her work uses political economy to assess the impact of public policy on urban neighborhoods and schools.

The company worked with a lot of children from poor, urban and rural neighborhoods teaching them about theater until 1995.

He said the solution in urban neighborhoods like his is for parents to become more involved.

"A lot of the great medical schools are in bad urban neighborhoods," he said.

But in an older urban neighborhood, such options are limited.