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  3. Loosing tempter to colleagues, eating extravagantly, even shouting to kids, these are the daily scenes most commonly seen when o

Loosing tempter to colleagues, eating extravagantly, even shouting to kids, these are the daily scenes most commonly seen when o

admin2013-07-02  4
问题     Loosing tempter to colleagues, eating extravagantly, even shouting to kids, these are the daily scenes most commonly seen when one is under stress. Stress is inevitable in our everyday life. However, there are ways to minimize its grip on your life, starting with your diet.

    Most of us recognize that certain foods have brutal effects on the brain — for productivity, mood and mental energy. Too much chocolate can leave you dragging after the sugar and caffeine jolts(突然的震惊)fade away. An overdose of salty chips dehydrates the body and the brain, bringing on fatigue. High fat meals raise stress hormone levels. The problem is that these are precisely the foods we reach for at exactly the wrong times, as they make tension from work and daily life worse just when we seek relief.
    The Food and Mood Project, a nutrition research group in the U. K., has drawn a list of "food stressors" and "food supporters" — foods that increase stress from the inside and those that help people under stress — on the basis of personal experience among 200 people surveyed.
    Nearly 90% of those surveyed reported that their mental health had improved significantly with changes in diet. Participants reported that cutting down or avoiding "food stressors" like sugar, caffeine, alcohol and chocolate had the most impact on mental health. So did having more "food supporters" like water, vegetables, fruit and oil-rich fish. The survey also found some dietary strategies particularly helpful in encouraging a healthful diet: eating regular meals, carrying nutritious snacks and planning meals in advance.
    Researches now underway are on how foods will affect our internal chemistry. We already know that stress hormones actually rob the bodies of vitamins, hijacking them with the tensing of muscles and the rise of blood pressure, reactions fundamental to the fight-or-flight response. Thus at times when we’re experiencing the nervous-system workout of anxiety, we are in special need of B vitamins which will be used up in converting food into energy for the body.
    It’s double disaster for the body if calories consumed during stressful times don’t come from nutritious foods, as they’ll then be used up even more quickly. Even a slight vitamin B deficiency — say, from a few days of overloading on chips and soda — upsets the nervous system and compounds stress.
    Extreme stress can create even more nutritional disaster. The "fight or flight" effect on our bodies is drastic. Some 1400 chemical changes occur as stress hormones deprive the body of important nutrients. The hormones released in response to stress can cause the lack of carbohydrate by lowering levels of a calming hormone. Increasing carbohydrate intake can strengthen tolerance to stress by boosting levels of this hormone, but it can also cause weight gain and overeating, particularly of sugary foods.
    When the pressure is on, it’s difficult not to turn to junk food for relief. But sticking to highly nutritious, low fat, low sugar, and low caffeine diet will be its own reward.
What can we know from the passage?
选项 A、Our blood pressure will rise when taking " food stressors".
B、Changing food into energy will use up the body’s vitamin B supply.
C、Some food will endanger our bodies with the tensing of muscles.
D、Junk food cannot provide us with vitamins that are vital for stress reduction.
答案D
解析 推理判断题。文中第五段和第六段提到压力荷尔蒙会剥夺身体的维生素…我们会尤其需要维生素B，而维生素B同时也用于将食物转化成身体所需的能量。当我们感到压力很大的时候如果能量不是从那些有营养的食物中摄入的，那么身体将面临双重灾难，因为这时能量将更迅速的被消耗掉。所以只有[D]正确。[B]项缺少前提条件，故错误。
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