Through great quantity of research, scientists confirm that the increasement of cation will cause the great increasement of serotonin in blood, and that some even accelerate the secretion of epinephrine, which can cause suprarenal failure syndrome.

• 科学家们的大量研究证实，空气中正离子增加，重者会使一些人的血液中增加大量的血清素，有的还促使肾上腺素分泌过多换上一种“肾上腺衰竭综合症”。