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Turning the lights out or wearing a blind fold while eating could be a quick way to lose weight, according to scientists. The simple trick works because it stops diners eating for pleasure rather than for calories. It also triggers (引发) a part of the brain that is worried that unseen food may go bad.
An experiment by the University of Konstanz, in Germany, found that people who were blind folded consumed nine percent fewer calories before they felt full, compared to those who could see. They also vastly over estimated how much they had eaten because they could not see how much was left on the plate. Blind folded volunteers estimated theyhadeaten88percent more than they actually had.
Scientists believe that not seeing food on the table also allows the body to know when it is full in real time rather than remembering past experiences where it might have taken a full plate to feel full.
In the experiment, 50peoplewere blindfoldedand40were allowed to see their food. All were told not to eat within two hours of the experiment. They were then given three 95gbowls of chocolate ice cream and invited to eat for 15 minutes. Their bowls were taken away and the remaining ice-cream weighed, while the participants were quizzed on how much they thought they had eaten.
On average the group who could see ate 116gwhile the blind folded groups ate 105g. However, the blindfolded group believed they had eaten 197gwhile compared with 159g for the non-blind volunteers. They were also asked how pleasant the ice-cream tasted and the blind folded group rated lower than those who could see.“The experienced pleasure of eating was lower in the blind folded group. Not seeing the food might have decreased the appetite. Sight plays an important role in the eating experience and in the overall dining experience. ”
Previous studies have shown that the visual influence of food plays a large part in the taste. While restaurants that allow diners to eat in the dark state that it triggers other senses, in fact eating in darkness is likely to taste far milder than usual.
42. With the lights out, diners eat less partly because______.
A.they want to quickly finish their meals
B.they trust their feelings more than ever
C.they focus more on fun than the calories
D.they worry about the quality of the food.
43. We can learn from the passage that the blind folded group______.
A.spent a much longer time eating the same food
B.believed they ate more than they really did
C.depended on past experiences to feel full
D.thought the food tasted better than usual
44. The last two paragraphs tell us that______.
A.diners are likely to lose their appetite eating in darkness
B. senses rather than sight play an important role in the taste
C.findings of this experiment differ from the previous studies
D.restaurants benefit a lot from allowing diners to eat in the dark
45. The main purpose of the passage is to______.
A.provide statistics related to eating in the dark
B.offer reasons for people to eat in the dark areas
C.inform the readers of the result of an experiment
D.advise the readers to lose weight in a new way
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