The obesity rate is 52% in Brownsville, Texas - far higher than the national average. Nearly one in three residents has diabetes - three times the rate elsewhere. Brownsville also has a very high rate of poverty where more half the residents are not covered by health insurance.

This city and other largely hispanic communities along the U.S. - Mexico border are facing a health emergency.

Brownsville decided to tackle the crisis head on, with an innovative mix of public initiatives - including a new farmer's market, many miles of bike lanes, changes to zoning regulations, and a community-wide health challenge.

Our guest is obstetrician-gynecologist, Rose Gowen, a City Commissioner in Brownsville. We hear her personal story and what Brownsville is doing to transform itself into a more active, prosperous and healthy community.

"We have found here that even in the poorest among us they want to feel better and they want better for their family and they're willing to listen to options and ideas," says Rose.

"The difference that we've made is huge."