Researchers in South Australia are claiming a breakthrough in the understanding of asthma say news sources.
They have found a protein which stops the absorption of the essential mineral, zinc, which may help control symptoms.
According to researchers, zinc can protect humans against any pollutants that are inhaled.
However, experts have found that in asthmatics zinc does not have the same effect because the molecules that usually carry it through the body are missing.
Work has begun to find a way to correct the deficiency.