我国古代养生家孙思邈指出“食不可饱”、“进餐莫到九分饱”。这些认识均为现代医学所肯定。科学家们发现,每餐过饱,可使大脑反应迟饰、记忆力下降、注意力涣散,应激能力减弱。而且吃得越饱,影响越大。研究证明:吃得过饱,血液就会过多地集中在胃肠等消化器官,迫使脑组织处于相对的缺血和缺氧状态,以致头脑发昏,困倦乏力,思维活动异常迟钝,不论怎么强打精神也不能奏效。还有一种称为“纤维芽细胞生长因子”的物质,饱餐后在大脑中的含量要比吃饭前增多数万倍。该物质是脑神脉硬 Sun Ssu-k’ang, an ancient Chinese health-care provider, pointed out that “food can not be full”, and “food does not reach full nine”. These are the recognition of modern medicine. Scientists have found that every meal is too full, the brain can be delayed reaction decoration, memory loss, distracted attention, weakened stress. And eat more full, the greater the impact. Studies have shown that: eat too full, the blood will be too much focus on gastrointestinal and other digestive organs, forcing the brain tissue in a relatively ischemic and hypoxic state, resulting in dizziness, drowsiness, abnormal mental activity slow, no matter how strong Fight can not work. There is also a known as “fibroblast growth factor ” substances, after a meal in the brain content than before eating tens of thousands of times. The substance is cerebral plexus