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 .
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 .