Mothers who get less than five hours of shut-eye a night have more trouble shedding pregnancy weight after childbirth than mothers who sleep for more than seven hours, according to a study published in the American Journal of Epidemiology.

• 据《美国流行病学杂志》的一项研究称，相比与睡眠超过7小时的母亲，晚上睡眠少于5小时的母亲在孩子出生后更难减掉怀孕时增加的体重。