4、kingitevenharderforthebloodtocirculate.Thiscausesyourbodytoincreaseyourbloodpressuretopushthebloodbacktotheheart.Crossingyourlegscanalsoleadtoneckandbackpain.Whenyousitwithyourlegscrossed,yourhipsareinatwistedposition,whichcancauseoneofyourpelvic (骨盆的) bo