Why do people say that arizona is the best place for people to live who have allergies?

Moving out west: Many patients originally from the east have moved out to arizona and seen their allergic symptoms dissipate, but not all. The midwest sports some very dry areas oftentime at high altitudes where dust mites don't thrive. Also. The pollens are oftentime different enough from those in the east so that patient sfind they tolerate their first few years in a place like ariz.Ona.

Better air quality : And less pollinating trees/ grasses are possible reasons. But in the metropolitan areas there are still issues with air quality due to exhaust matter from traffic.