The physical , hormonal , emotional and social changes facing a woman directly after giving birth can be monumental .
在女性分娩后，直接面對的生理的，荷爾蒙的，情感的，社會的變化對其影響是深遠巨大的。
Previous research has found these hormonal ups and downs in male wrestlers martial artists tennis players chess players and even people playing a coin-flip game .
之前的研究在男性摔跤手、武術明星、網球選手、象棋選手，甚至玩翻硬幣的人身上發現過荷爾蒙的起伏。
Not getting enough sleep can also lead to hormonal changes in men and women that can disrupt hunger signals and stimulate appetite or lessen feelings of satiety .
睡眠不足也會引起男性和女性的荷爾蒙的變化，并且它會阻斷饑餓信號，刺激食欲或是減少飽腹感。
Researcher shinji tsukahara says the decrease in spines may have been caused by a number of factors , including hormonal changes triggered by the presence of a female .
研究人員冢原慎司說，脊髓組織的減少可能是由多種因素引起的，包括雌性出現引發的荷爾蒙的改變。
Doctors hypothesize that the main problem is the hormones present in most milk products , which interfere with normal hormonal function .