( Also ( , ( ( if ( you ( are ( able ( to ( breastfeed ( within ( ( the ( first hour ) ) ( of ( giving birth ) ) ) ) ) ) ) ) ) ) ( , ( ( those ( same contractions ) ) ( ( help ( ( ( to ( expel ( the placenta ) ) ) and ) ( to ( ( shut off ) ( ( ( ( the ( blood vessels ) ) ( in ( your uterus ) ) ) , ) ( reducing ( ( the chances ) ( of ( postpartum hemorrhage ) ) ) ) ) ) ) ) ) . ) ) ) ) ) )
(ROOT (S (ADVP (RB Also)) (, ,) (SBAR (IN if) (S (NP (PRP you)) (VP (VBP are) (ADJP (JJ able) (S (VP (TO to) (VP (VB breastfeed) (PP (IN within) (NP (NP (DT the) (JJ first) (NN hour)) (PP (IN of) (S (VP (VBG giving) (NP (NN birth)))))))))))))) (, ,) (NP (DT those) (JJ same) (NNS contractions)) (VP (VBP help) (S (VP (VP (TO to) (VP (VB expel) (NP (DT the) (NN placenta)))) (CC and) (VP (TO to) (VP (VB shut) (PRT (RP off)) (NP (NP (DT the) (NN blood) (NNS vessels)) (PP (IN in) (NP (PRP$ your) (NN uterus))) (, ,) (VP (VBG reducing) (NP (NP (DT the) (NNS chances)) (PP (IN of) (NP (NN postpartum) (NN hemorrhage))))))))))) (. .)))
Also, if you are able to breastfeed within the first hour of giving birth, those same contractions help to expel the placenta and to shut off the blood vessels in your uterus, reducing the chances of postpartum hemorrhage.
(ROOT (S (S (NP (DT The) (NN postpartum) (NN period)) (VP (VBZ starts) (SBAR (IN after) (S (NP (DT the) (NN baby)) (VP (VBZ is) (VP (VBN born))))))) (, ,) (CC and) (S (NP (DT the) (NN placenta)) (VP (VBZ is) (VP (VBN expelled) (PP (IN from) (NP (DT the) (NN body)))))) (. .)))