Want better video quality? Sign in to access HD streaming!


Want to watch better-quality PBS Video? Sign in to access HD streaming!

When you sign in, you'll become a PBS Insider and we'll share your contact information with your local PBS station. You may receive updates to help you stay connected with what's happening online and in your community. Privacy Policy


Children's Health Study

  • Aired: 01/11/2011
  • 06:15
  • Rating: NR
What's behind rising rates of asthma, autism and other childhood diseases baffling doctors? A new long-term study launching in Cook County hopes to find out, and we tell you how your family can participate.
Embed Options
Close ×
Children's Health Study
Children's Health Study
Cook County joins a major national study on childhood diseases
Please copy this text to your clipboard.
Problems Playing Video ?
WTTW video streaming support provided by members and sponsors.
PBS Anywhere - funder area
Related Links:


Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.

Masterpiece Collection

Own it now! Victoria, Poldark, Downton Abbey on DVD & Blu-ray. Visit ShopPBS.


WTTW11 helps all of us explore new worlds and ideas. Give Now