为什么已经吃到撑但嘴巴还是停不下来_BEC初级作文

为什么已经吃到撑但嘴巴还是停不下来

初步研究表明，含有两种或多种调味成分（特别是糖、盐、脂肪或碳水化合物）的食物可激活大脑的奖励神经回路（与可卡因或阿片类药物的作用类似）。这些食物或许还能避开我们的身体机制，而这种机制会提醒我们饱腹，不需要再度进食。

Our research focuses on rewarding foods, addictive behaviors and obesity. We recently published a study with nutritional scientist Debra Sullivan that identifies three clusters of key ingredients that can make foods hyperpalatable. Using those definitions, we estimated that nearly two-thirds of foods widely consumed in the U.S. fall into at least one of those three groups. Foods that are easily accessible and cheap are everywhere in our society. Unsurprisingly, eating them has been associated with obesity.

我们的研究集中关注奖励食物、成瘾行为和肥胖。近期，我们与营养学家黛布拉·沙利文（Debra Sullivan）合作发表了一项研究，确定了使食物变得超级美味的三类关键成分。通过定义，我们估计全美三分之二的美食都在这三类成分之列。便宜易买的食物到处都是，而食用这些食物与肥胖有关也就不足为奇了。

Documentaries in the last 15-20 years have reported that food companies have developed formulas to make palatable foods so enticing. However, manufacturers typically guard their recipes as trade secrets, so academic scientists can't study them. Instead, researchers have used descriptive definitions to capture what makes some foods hyperpalatable. For example, in his 2017 book, David Kessler, former Commissioner of the U.S. Food and Drug Administration (FDA), wrote: