Breathing in air pollutants can irritate your airways. It may cause shortness of breath, coughing, wheezing, asthma episodes and chest pain. Overtime, exposure to air pollution puts you at risk for lung cancer, heart attack/strokes, etc. Some people are more at risks from others though
The class of macromolecule a steroid belongs to is a lipid.
I say A they dont neither grow or lower. and if they do they go back to normal