Dry conditions are linked to more frequent and severe dust storms and wildfires.
Dr. Linda Rudolph from the non-profit Public Health Institute says the associated particulate matter is bad news for people with lung problems and heart disease.
"There might be an increased risk of pneumonia for people who are exposed to a lot of dust. In fact in the dust bowl in the 30’s, there were hundreds to thousands of deaths from what people called ‘dust pneumonia.'"
~Dr. Linda Rudolph, Public Health Institute
Rudolph says drought can dry up well water and increase water contamination in areas already struggling to get access to clean water.
She also says drought affects agricultural production, which rolls into problems with food prices and unemployment.
And those circumstances add more obstacles to staying healthy.
Four consecutive years of drought, millions of dead trees and summer heat, are all factors as thousands of firefighters work to control wildfires in California.
Not much change is expected in drought conditions in California during the summer "dry season" but wildfire danger is increasing, with 66 million dead trees in the Sierra Nevada adding potential fuel.
The U.S. Forest Service says 66 million trees are dead in the Sierra Nevada after four consecutive years of drought in California and a bark beetle infestation.
California is in the fifth consecutive year of drought and water providers continue to urge voluntary conservation, as mandatory statewide rules have ended. Sacramento-area residents reduced their water use by 31 percent in May.
As thousands of federal and state firefighters work to contain wildfires in California and other western states, record-setting heat has prompted warnings from the National Weather Service for parts of California, Nevada and Arizona.