It is based upon the fact that over breathing causes blood vessels in the lung to contract in order to preserve levels of carbon dioxide in the blood, this contraction of the blood vessels brings on the onset of Asthma symptoms.
(It; is based; upon the fact that over breathing causes blood vessels in the lung to contract in order to preserve levels of carbon dioxide in the blood, this contraction of the blood vessels brings on the onset of Asthma symptoms) (blood vessels; to contract; in order) (this contraction of the blood vessels; brings on; the onset of Asthma symptoms)
It blood vessels this contraction of the blood vessels
is based to contract brings on
upon the fact that over breathing causes blood vessels in the lung to contract in order to preserve levels of carbon dioxide in the blood, this contraction of the blood vessels brings on the onset of Asthma symptoms
in order
the onset of Asthma symptoms