什么让你越吃越想吃？

Time of Day 时间选择

Time of Day 时间选择
Through routine, we condition our bodies to expect breakfast, lunch and dinner at the same time each day, says Randy Seeley, a professor of psychiatry at the University of Cincinnati." Part of the reason you're hungry at noon is because that's the time you've eaten for the last 100 days."
辛辛那提大学精神病学教授Randy Seeley介绍，按照常规，我们的身体习惯于每天定时摄入早餐、午餐和晚餐。你在午间感到饥饿，一部分原因是因为过去100天里你都在这一时段吃饭。

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Sight 视觉效果

Sight 视觉效果
Research using MRIs shows that brain patterns of people viewing photos of foods they like and foods they don't like are "very different," Seeley says. "The body anticipates when food is about to enter the system." And that's why your mouth starts watering when you see Mom's pie.
Seeley称，研究员利用核磁共振设备研究发现，人们看到喜欢的食物照片和讨厌的食物照片时大脑模式会非常不同。身体会在食物进入大脑信息前开始行动。这就是为什么看到妈妈的派时你的嘴巴就开始流口水了。

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Variety 食物种类

Variety 食物种类
Even after eating a large meal, we often "make room" for dessert, because a desire for sweets hasn't been satisfied. Ann Gaba, a registered dietitian at New York Presbyterian Hospital, says that sometimes all it takes is a bit of fruit in a salad during a meal to curb a sugar craving.
即便干吃完一顿大餐，我们的胃里还是有空间吃甜食，这是因为我们对甜味的需求尚未得到满足。纽约长老会医院注册营养师Ann Gaba说，在一餐中摄入一些水果沙拉能够有效抑制吃甜食的欲望。

Smell 食物气味

Smell 食物气味
Scent is one of the key ways we cue our bodies that food is near. once the trigger goes off, it can induce the insulin secretion that makes us think we're hungry. Says Sharron Dalton, a nutrition professor at New York University: "Smell and sight alone activate the appetite cascade."
气味是提醒我们身体食物就在附近的重要方式。一旦触发停止，提醒我们饥饿的胰岛素就能减少分泌。纽约大学营养学教授Sharron Dalton称，气味和视觉自身就能有效刺激胃口。

Alcohol 酒精刺激

Alcohol 酒精刺激
Drinking has not been scientifically proved to stimulate appetite, but too much beer, wine or liquor can impair judgment, causing us to eat more. "Most people who are on a diet will say it's a lot harder to push themselves away from the table if they've been drinking," observes Seeley.
还没有科学研究证明饮酒能够促进食欲，但大量饮用啤酒、葡萄酒或烈性酒类能够减弱判断力，使我们吃掉更多。Seeley研究发现，“大部分节食者表示饮酒后很难控制食欲。”

Temperature 环境温度

Temperature 环境温度
The colder the temperature, the more people tend to eat, which is why restaurants often keep thermostats low. "Your metabolism drops when it's time to eat, and eating warms you up," says David Ludwig, professor of pediatrics at Harvard. "Heat is a satiety signal."
天气越冷，人们想吃的就越多，这也是很多餐厅故意把冷气调低的原因。哈佛儿科教授David Ludwig称：“进食时间新陈代谢会减慢，进食能让你感到温暖。温暖是吃饱的信号。”

Refined Carbs 精制碳水化合物

Refined Carbs 精制碳水化合物
After a meal heavy in refined carbohydrates, like white pasta, the body may crave food again within only a few hours. These foods cause blood sugar to drop, and "when our blood sugar is crashing, we're going to be a lot more interested in food in general," Ludwig says.
吃过像白面意面这样富含精制碳水化合物的一餐，几个小时后我们就可能又想吃东西了。这种食物会让血糖含量降低，这会让我们更想吃些东西。