Skipping breakfast extends the normal period of nocturnal fasting and depresses glucose levels, which the group thinks could be interpreted by the body as indicative of hard times.

• 不吃早餐使正常的晚间停食期加长并且降低了（机体的）葡萄糖水平--研究小组认为人体把这些看作（食物短缺的）困难时期的标志。