Memories of experienced troubles, thoughts of misfortunes that could theoretically occur in the future (despite the absence of real danger at the moment) also cause more frequent or holding your breath. Gradually intensifying muscle blocks more difficult to breath, which becomes ineffective - not deep enough, uneven, faltering. When breathing is interrupted or is not sufficiently active oxygen for the full supply of the tissues of the body is not enough. To compensate for this shortage, the blood must circulate faster - and the body automatically increases blood pressure. Contributing to the violation of the natural process of breathing making sedentary work, lack of exercise, stress, the fashion for tight fitting clothes, tighten the belt pants and t. E.