[2007.4.29][转贴][APTX青山病院]吃一顿饭的伤害跟你被打差不多？

belmont

http://www.medicalnewstoday.com/medicalnews.php?newsid=68660

A Single High-Fat Meal Plus Stress Equals Physical Harm

Article Date: 27 Apr 2007 - 3:00 PDT

So much for the adage, 'All things in moderation.' Researchers at the University of Calgary have found that people who consume a single, high-fat meal are more prone to suffer the physical consequences of stress than those who eat a low-fat meal.


Published this month in the [I]Journal of Nutrition, the study looked at the stress responses of two groups of students: one group consumed a fast-food breakfast from McDonald's, the other ate dry cereal with skim milk, cereal bars and non-fat yogurt.


"What's really shocking is that this is just one meal," says Dr Tavis Campbell, a specialist in behavioural medicine and senior author of the study.


"It's been well documented that a high-fat diet leads to artherosclerosis and high blood pressure, and that exaggerated and prolonged cardiovascular responses to stress are associated with high blood pressure in the future. So when we learn that even a single, high-fat meal can make you more reactive to stress, it's cause for concern because it suggests a new and damaging way that a high-fat diet affects cardiovascular function."


In the study, 30 healthy young adults fasted the night before, then consumed either a high- or low-fat breakfast. Both meals had the same number of calories and the low-fat breakfast included supplements to balance it for sodium and potassium.


Two hours later the two groups were subjected to standard physical and mental stress tests while having their cardiovascular responses measured. They performed a mathematical test designed to be stressful, completed a public speaking exercise about something emotionally provocative, held an arm in ice water, and had a blood pressure cuff inflated around an arm, which gradually causes a dull ache.


"Regardless of the task, we recorded greater reactivity among those who consumed the high-fat meal in several cardiovascular measures we recorded, including blood pressure, heart rate and the resistance of blood vessels," says Fabijana Jakulj, a U of C student who used the study as the basis for her honours thesis.


Campbell cautions that despite the grim message that even one high-fat meal is unhealthy, more research is needed to fully understand how the mechanisms work. "Telling people to never eat something is probably not a good way to promote a better diet," he says. "At the same time we do have an epidemic of obesity in North America and it's important that people try to make informed choices."





So much for the adage, 'All things in moderation.' Researchers at the University of Calgary have found that people who consume a single, high-fat meal are more prone to suffer the physical consequences of stress than those who eat a low-fat meal.
谚语"什么东西都要适度"是我们一直说的。卡尔加里大学的研究人员发现那些吃一顿高脂肪饭的人比那些吃一顿低脂肪饭的人更倾向于容易遭受压力对于自身的物理性损伤。


Published this month in the Journal of Nutrition, the study looked at the stress responses of two groups of students: one group consumed a fast-food breakfast from McDonald's, the other ate dry cereal with skim milk, cereal bars and non-fat yogurt. 这个月的营养学期刊刊登了这个发现，这个研究关注了两组学生在实验之中所产生的对于压力的反映：一组学生吃了麦当劳的早餐，另一组学生吃了牛奶冲麦片，粗粮棒子和不含脂肪的酸奶。


"What's really shocking is that this is just one meal," says Dr Tavis Campbell, a specialist in behavioural medicine and senior author of the study.
"真正让我们震惊的是这仅仅是一顿饭的对比，"行为医学专家，实验的主策划者，Tavis Campbell说。


"It's been well documented that a high-fat diet leads to artherosclerosis and high blood pressure, and that exaggerated and prolonged cardiovascular responses to stress are associated with high blood pressure in the future. So when we learn that even a single, high-fat meal can make you more reactive to stress, it's cause for concern because it suggests a new and damaging way that a high-fat diet affects cardiovascular function."
"这个实验留下了一个很好的证明，证明了仅仅一顿高脂肪的饭就可以导致动脉粥样硬化和高血压，同时也扩大了、演唱了心脏血管系统对于未来的、因为压力所引发的高血压的反应程度。因此当我们认识到仅仅是一顿简单的、富含高脂肪的饭可以让你在压力面前产生更大反映，我们应该考虑到，结果告诉我们这是一种一顿高脂肪饭可以影响心脏血管系统功能的新的破坏方式."


In the study, 30 healthy young adults fasted the night before, then consumed either a high- or low-fat breakfast. Both meals had the same number of calories and the low-fat breakfast included supplements to balance it for sodium and potassium.
在研究中，30个健康的年轻人在实验前夜都被禁食，然后都进食高脂肪或者是低脂肪的早餐。两种餐都包含了相同量的卡路里，同时低脂肪的早餐之中为了平衡钠和钾的含量还适量添加了添加剂。


Two hours later the two groups were subjected to standard physical and mental stress tests while having their cardiovascular responses measured. They performed a mathematical test designed to be stressful, completed a public speaking exercise about something emotionally provocative, held an arm in ice water, and had a blood pressure cuff inflated around an arm, which gradually causes a dull ache.
2小时后，当两组人的心脏血管系统反应都被测量之后，2组人被要求进行标准的生理与精神压力测试。他们进行一个被设计成令人感到有压力的数学测试，完成一个在公共场合进行的煽情性语言测试，再把一个手臂放入冰水中，而后用一根血管增压带绑住手臂，以此能够渐渐让人感到疼痛。


"Regardless of the task, we recorded greater reactivity among those who consumed the high-fat meal in several cardiovascular measures we recorded, including blood pressure, heart rate and the resistance of blood vessels," says Fabijana Jakulj, a U of C student who used the study as the basis for her honours thesis.
"抛开规定的任务不谈，我们记录下了那些吃了一顿高脂肪饭的、并且经过心脏血管系统测试，包括血压测试，心率测试和血管的梗阻程度的样本中所产生的强烈的反应结果，"卡尔加里大学的学生，用这个实验来作为她论文主题的Fabijiana Jakulj说。


Campbell cautions that despite the grim message that even one high-fat meal is unhealthy, more research is needed to fully understand how the mechanisms work. "Telling people to never eat something is probably not a good way to promote a better diet," he says. "At the same time we do have an epidemic of obesity in North America and it's important that people try to make informed choices."
Campbell告诫说，无论仅仅一顿饭就能带给我们这样一个不健康的结果，现在还需要有更多的研究来更加深入揭示这个机制的工作方式。"告诉人们不要吃什么，这不是一种推动人们形成健康饮食的方法"，他说。"与此同时在北美，肥胖的流行，使得人们在饮食结构上更加地需要更为广泛的指导选择。"





谚语"什么东西都要适度"是我们一直说的。卡尔加里大学的研究人员发现那些吃一顿高脂肪饭的人比那些吃一顿低脂肪饭的人更倾向于容易遭受压力对于自身的物理性损伤。


这个月的营养学期刊刊登了这个发现，这个研究关注了两组学生在实验之中所产生的对于压力的反映：一组学生吃了麦当劳的早餐，另一组学生吃了牛奶冲麦片，粗粮棒子和不含脂肪的酸奶。


"真正让我们震惊的是这仅仅是一顿饭的对比，"行为医学专家，实验的主策划者，Tavis Campbell说。


"这个实验留下了一个很好的证明，证明了仅仅一顿高脂肪的饭就可以导致动脉粥样硬化和高血压，同时也扩大了、演唱了心脏血管系统对于未来的、因为压力所引发的高血压的反应程度。因此当我们认识到仅仅是一顿简单的、富含高脂肪的饭可以让你在压力面前产生更大反映，我们应该考虑到，结果告诉我们这是一种一顿高脂肪饭可以影响心脏血管系统功能的新的破坏方式."


在研究中，30个健康的年轻人在实验前夜都被禁食，然后都进食高脂肪或者是低脂肪的早餐。两种餐都包含了相同量的卡路里，同时低脂肪的早餐之中为了平衡钠和钾的含量还适量添加了添加剂。


2小时后，当两组人的心脏血管系统反应都被测量之后，2组人被要求进行标准的生理与精神压力测试。他们进行一个被设计成令人感到有压力的数学测试，完成一个在公共场合进行的煽情性语言测试，再把一个手臂放入冰水中，而后用一根血管增压带绑住手臂，以此能够渐渐让人感到疼痛。


"抛开规定的任务不谈，我们记录下了那些吃了一顿高脂肪饭的、并且经过心脏血管系统测试，包括血压测试，心率测试和血管的梗阻程度的样本中所产生的强烈的反应结果，"卡尔加里大学的学生，用这个实验来作为她论文主题的Fabijiana Jakulj说。


Campbell告诫说，无论仅仅一顿饭就能带给我们这样一个不健康的结果，现在还需要有更多的研究来更加深入揭示这个机制的工作方式。"告诉人们不要吃什么，这不是一种推动人们形成健康饮食的方法"，他说。"与此同时在北美，肥胖的流行，使得人们在饮食结构上更加地需要更为广泛的指导选择。"

S-momo

这日子没法过了.

morgana

只是觉得，什么都不能吃了。。。

hiddern70

嗯，记得前几天在麦当劳门口看见了一个牌子，上面说所有的医务工作者凭借自己的ID在麦当劳就餐可以享受9折的优惠。。。。。。
也许这也算是他们妥协的一个标志吧。。。。--||

lyguonan

专家现在泛滥成灾啊……