A national ranking highlights cities where asthma can be particularly difficult to manage. The Asthma and Allergy Foundation of America released a report that assesses metropolitan areas across the United States. This report ranks one Texas city as especially challenging for people with asthma.

Further information about the ranking and its methodology can be found in the full report. The city of Dallas is ranked among the top 20 most challenging metropolitan areas, coming in at number 18 out of 100.