帮我找一篇关于健康的英语演讲稿，三分钟左右，大学四级水平
Soy food good for womenWomen who ate soy regularly as children have a lower risk of breast cancer, American researchers report. And men who eat fish several times a week have a lower risk of colon cancer, a second team of researchers have told the American Association for Cancer Research. The studies add to a growing body of evidence about the role of diet in cancer. Cancer experts now believe that up to two-thirds of all cancers come from lifestyle factors such as smoking, diet and lack of exercise. The US National Cancer Institute and researchers at the University of Hawaii found that women who ate the most soy-based foods, such as tofu and miso, when aged 5 to 11, reduced their risk of developing breast cancer by 58 per cent. It was not clear how soy might prevent cancer, though compounds in soy called isoflavones have estrogen-like effects. A second study showed that men who ate fish at least five times a week had a 40 per cent lower risk of developing colorectal cancer compared with men who ate fish less than once a week. Many kinds of fish are rich in omega-3 fatty acids, which interfere with the cyclooxygenase-2 or COX-2 enzyme. COX-2 affects inflammation, which may play a role in tumour growth.据美国研究人员报告，儿童时期经常吃豆类食品的女性患乳腺癌的风险较小。
另一组研究人员则向美国癌症研究协会提出，一周吃几次鱼的男性患结肠癌的几率较小。
这两项研究进一步证明了饮食对于防癌的作用。
癌症防治专家认为，在所有种类的癌症中，多达三分之二都是由吸烟、节食及缺乏锻炼等不健康的生活方式造成的。
美国全国癌症研究所和夏威夷大学的研究人员发现，在5岁至11岁时经常吃豆腐、味噌等豆类食品的女性患乳腺癌的几率要低58%。
至于豆类食品为什么可以防癌还不清楚，不过大豆中所含的名叫异黄酮的化合物具有雌性激素的作用。
另一项研究表明，一周吃鱼至少五次的男性患结肠癌的风险要比那些一周都吃不到一次鱼的男性低40%。
很多鱼类中所富含的Omega-3脂肪酸能够抑制环氧化酶2的活性。
环氧化酶2会引起发炎，这可能会刺激肿瘤的生长。
If you're middle-aged and your memory's not what it used to be, check the bathroom scale, researchers warned, suggesting overweight people tend to score more poorly on tests of memory than their thinner peers do. The findings suggest that a heavier weight in middle age may mean a higher risk of dementia later in life. Reporting in the journal Neurology, the researchers speculated that higher rates of cardiovascular disease or diabetes might help explain the link. But it's also possible that substances produced by fat cells, such as the hormone leptin, have direct effects on the brain. The study compared mental abilities to body mass index (BMI), a measurement of weight in relation to height used to define overweight and obesity. A BMI of 25 or more indicates overweight, and 30 or more is obese. The study also investigated the relationships between BMI and cognitive function in 2,223 healthy men and women between the ages of 32 and 62 in France through the use of four cognitive tests. The study found a higher BMI was associated with lower cognitive test scores. Results from a test involving word memory recall show people with a BMI of 20 remembered an average of nine out of 16 words, while people with a BMI of 30 remembered an average of seven out of 16 words. 研究人员提醒，如果你已步入中年，发现自己的记忆力不如从前，那么你得小心体重了。
研究表明，超重的人记忆测试的得分要比较瘦的人低。
研究发现，体重偏大的中年人今后患老年痴呆症的可能性较大。
研究报告在《神经学》期刊上发表，研究人员推断，心血管疾病及糖尿病的高发现象可以解释其中的原因。
此外，脂肪细胞所产生的物质，如瘦体激素，对大脑有直接影响。
此项研究将调查对象的智力与体重指数进行了对比。
体重指数指的是身高和体重之间的比例，主要用来衡量一个人是否偏胖或肥胖。
体重指数为25或25以上的人偏胖，达到30或30以上的人则为肥胖。
研究人员还对体重指数和认知功能间的关系进行了研究，他们在法国对2223位年龄在32岁至62岁间的健康男女进行了认知测试。
研究发现，体重指数越大，认知测试的得分越低。
其中一项单词记忆的测试结果表明，在16个单词中，体重指数为20的人平均能记住9个，而体重指数为30的人平均只能记住7个。
People who do not get enough sleep are more than twice as likely to die of heart disease, according to a large British study released Monday.Although the reasons are unclear, researchers said lack of sleep appeared to be linked to increased blood pressure, which is known to raise the risk of heart attacks and stroke.A 17-year analysis of 10,000 government workers showed those who cut their sleep from seven hours a night to five or less faced a 1.7-fold increased risk of death from all causes and more than double the risk of cardiovascular death.The findings highlight a danger in busy modern lifestyles, Francesco Cappuccio, professor of cardiovascular medicine at the University of Warwick's medical school, told the annual conference of the British Sleep Society in Cambridge.A third of the population of the UK and over 40 percent in the US regularly sleep less than five hours a night, so it is not a trivial problem, he told reporters.Previous research has highlighted the potential health risks of shift work and disrupted sleep. But the study by Cappuccio and colleagues, which was supported by British government and US funding, is the first to link duration of sleep and mortality rates.The study looked at sleep patterns of participants aged 35-55 at two points in their lives - 1985-88 and 1992-93 - and then tracked their mortality rates until 2004.The results were adjusted to take account of other possible risk factors such as initial age, sex, smoking and alcohol consumption, body mass index, blood pressure and cholesterol.Cappuccio said it was possible that longer sleeping could be related to other health problems such as depression or cancer-related fatigue.In terms of prevention, our findings indicate that consistently sleeping around seven hours per night is optimal for health, he said.(Agencies) 本周一公布的一项大规模英国调查表明，睡眠不足的人死于心脏病的几率是睡眠充足者的两倍多。
目前其中的原因尚不清楚，但研究人员称，睡眠不足会导致血压升高，从而增大患心脏病和中风的风险。
一项针对1万名政府职员、长达17年的跟踪调查表明，每晚睡眠时间从七个小时减少到五个小时或更少的人因各种原因而死亡的几率是睡眠正常者的1.7倍，而且死于心血管疾病的风险也增加了1倍多。
沃里克大学医学院的心血管药物学教授弗朗西斯哥•卡普西奥在英国睡眠学会在剑桥召开的一年一度的研讨会上说，这一研究成果揭示了忙碌的现代生活中潜在的危险。
他在接受记者采访时说：“三分之一的英国人以及超过40%的美国人每晚的睡眠时间常常达不到五个小时，所以这个问题不可小视。
”此前有调查发现轮班及睡眠中断会对健康产生潜在威胁。
但卡普西奥及其同事的这项调查则首次揭示了睡眠时间长短与死亡率之间的关系。
该调查由英国政府和美国基金提供资助。
该调查对年龄在35岁至55岁之间的人在1985年至1988年以及1992年至1993年两个阶段的睡眠模式进行了探究，并对这一人群截至2004年的死亡率进行了追踪。
调查还考虑到了调查对象的初始年龄、性别、是否吸烟喝酒、体重指数、血压及胆固醇指标等其它可能的风险因素。
卡普西奥说，睡眠时间过长也可能导致如抑郁症及癌因性疲乏等其它健康问题。
他说：“就预防而言，我们的研究结果表明，每晚睡眠时间持续保持在七小时左右最益于身体健康。
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谁帮我找一篇英语演讲稿。
比赛要用。
3分钟左右最好
帮我找一篇关于健康的英语演讲稿，三分钟左右，大学四级水平，谢谢
体重指数指的是身高和体重之间的比例，主要用来衡量一个人是否偏胖或肥胖。
关于保持身体健康的英语演讲稿
完全是自己写的哦希望能帮助你Hello everybody.Do you know how to keep health and the importance of health ? Let me tell you. Everybody. Hope have a good body because health is very important for us,if you have a good body,you can do anything and have a good mood,such as do sport ,go travel study ,go anywhere and so on because you are strong people.If you don't have.so you have to stay at home. Ok .Let me tell you how to keep health The first you need to have a good living habbit early to bed early to rest,play some sprots wiht you friend such as play basketball or football running swimming and so on.Go to fitness class to do a regular body exam and take about the health care or medical treatment in BJ In a word if you have a good body , you can do anything you want .
求科学饮食，健康生活的高中英语演讲稿，三分钟左右
Everyone wants to maintain good health, if you are healthy, then you can do you want to do anything, your family will be full of laughter, your work will be much more simple. You want to have a healthy body? Then try to do the following thing! First, you face daily smile, maintain a good mood. Take part in some sports, such as running，playing baseball. It is in a strong body. Secondly, we must pay attention to our diet, not to drink too much wine, water, every day at least eight cups of water; Deliberately not to lose weight, did you have no health benefits. Again, resulting from smoking on your own and other people is not good! To maintain good health let us do it. Others can take away our money, house, car, or even our clothes and we can survive. But if our health was taken away, we would surely die. That is why we always try to eat in a healthy way and exercise regularly. Living a long life may be a lot easier than you think. And there are some bad habit we need to get rid of 。
A report suggests 10 steps to a longer and healthier life. 1. Shun cigarette smoke, separate yourself from smokers. . Become a nag and tell anyone you know who smokes to stop. 2. Keep moving. The U. S. Department of Health and Human Services suggests every adult get at least 150 minutes of moderate aerobic activity a week. Sessions should be at least 10 minutes long. 3. Eat like an Aegean. Follow the Mediterranean diet pattern of mostly plant foods, limiting animal protein to fish and poultry, using olive oil as the principal fat and use wine in moderation. 4. Mind your body mass index. Obesity increases the risk of diabetes 20 times and substantially boosts the risk of developing high blood pressure, heart disease, stroke and gallstones. 5. Lift a glass, but only one. Alcohol's effects become more insidious as women age because the body's water-to-fat ratio declines over the years. 6. Don't run up a sleep debt. Medical evidence suggests we need seven to nine hours of sleep daily, but more than 60 percent of women regularly fall short of that goal. 7. Be your own best advocate on health issues. 8. Keep connected. Older women who remain socially active live longer and healthier lives than their solitary counterparts 9. Avoid stress. Find techniques to reduce stress and its effects. 10. Use supplements selectively. Experts agree the best way to get nutrients is through food. Only calcium and vitamin D, essential in preserving bone density, are recommended supplements. And that includes 1,200 mg of calcium and 1,000 mg of vitamin.
最喜欢的一种食物英语演讲稿
My favorite food ------Jelly Usually , maybe you eat many foods , for example , ham , dumpling , hamburger and so on . Which food do you favorite in these foods ? I tell you I like to eat jelly . One day,when I saw many children were choosing the jelly in a shop, so I walked there with interest , and I found the packing of the jelly was very nice , from the outside , it was very transparent , bright and fresh color , and it made me lick my chops . So I shouted my mother , and asked her but a few kilos of jelly for me . When we walked into our house , I took out them right now , and peeled the packing , and then put it into my mouth , and I felt it was very delicious and I did not forget it until now . My favourite food is the jelly , not only it made me eat with joy , but also I realized the happiness when I tasted it 大家都知道巧克力是甜食。
它不但口感甜美，而且还具有一股浓浓的香味。
不过，吃太多巧克力也不好，因为吃太多会令人肥胖。
不过，巧克力可以缓解情绪低下，使人兴奋并可以集中注意力、加强记忆力。
虽然巧克力很好吃，不过还是少吃一点好。
We all know that chocolate is sweet. Not only does it taste sweet, but also has an aroma of thick. However, eating too much chocolate is not good, because eating too much can cause obesity. However, chocolate can ease the emotional low, people excited and can focus attention, enhance memory. While the chocolate is very delicious, but still eat a little better.我喜欢的食物--鸡蛋,我喜欢很多不同种类的食物、蛋是我最喜欢的。
鸡蛋含有大量人体的必需营养素,而且可以在世界各地找到它。
鸡蛋 可以制作很多菜,像煎蛋和。
你在超市很容易就可以找到它,它们的价格也很便宜。
这些蛋购买后,最好是把它开到锅或板和搅拌它。
如果这个蛋是用平底锅煎蛋,然后就裂纹的沸锅,记得要翻边。
鸡蛋含有大量的营养,是一个很好的能量的来源。
士兵们用带鸡蛋,作为他们在前线的食物。
蛋是我最喜欢的食物。
My favourrite food--Eggs I like many different kinds of food, egg is my favorite kind. Egg contains a lot of essential nutrients needed by the human body, and it's commonly found in almost any part of the world.Eggs are oval shaped spheres with a light brown color depending on the egg.Eggs is the basic ingredient to many dishes, like omelet and french toast. You can easily get eggs at any supermarkets, and they are sold for a very cheap price too. After the eggs are acquired, it is best to crack it open into a pan or plate and stir it evenly. If the egg is to be pan fried, then just crack the egg into the boiling pan, and remember to flip sides. Eggs contain lots of nutrients and is a very good source of energy. Soldiers used to carry eggs to the frontline as their food. Egg is my favorite kind of food.
求一篇英文的关于麦当劳的演讲稿，内容主要包括起源，发展及对美国人的影响，1000字左右
McDonald's In 1955, a man named Raymond Kroc entered a partnership with two brothers named McDonald. They opened a popular restaurant in Califor-nia which sold food that was easy toprepare and serve quickly. Hamburgers, French fries and cold drinks were the main food there.Kroc opened similar eating places under the same name,McDonald's, and they were an instant success. He later took over the company, and today it is one of the most famous and successful fast-food restaurants in America and the world. Why was his idea so successful? Probably the most important reason was that his timing was right. In the ]950s,most married women stayed home to keep house and take care of their children. In the 1960s, many women returned to the work place. This meant that they had less time and energy for housework and preparation of meals, so they depended more on TV dinners and fast-food restaurants. Single parents also have little time to spend in the kitchen. People living alone also depend on this type of food, since cooking for one is often more trouble than it is worth. Fast-food is not part of all Americans lives. Another trend of the 1960s, sometimes called the back-to-nature movement,influenced many people to avoid food that was packaged and processed. This preference for natural food continues to this day. From the success of Raymond Kroc's fast-food business,we can say that social and economic trends influence where and what we eat. 麦当劳 1955年，一位名为雷蒙德·克劳克的人与两位名为麦当劳的兄弟合伙，在加州开了一家颇受欢迎的小餐馆，销售制作方便服务快捷的食物。
那里的主打食品是汉堡、炸薯条和冷饮。
克劳克用同样的名字—一麦当劳开了几家类似的餐厅，迅速获得了成功。
后来他接管了这个公司，今天它成为美国和世界最有名、最成功的“快餐”厅之一。
他的想法为什么会如此成功呢?也许最重要的原因是因为他时机正好。
20世纪50年代，大多数已婚妇女呆在家里做家务、照顾孩子。
而在60年代，许多妇女回去工作。
这就意味着她们做家务、准备食物的时间、精力减少了，因此她们更多地依赖于“电视晚餐”和快餐店。
单亲家庭中父母也很少有时间花在厨房里。
独自居住的人也依赖于这种食物，因为一个人做饭经常太麻烦，不值当费那功夫。
快餐并不是所有美国人生活的一部分。
20世纪60年代还有另一种有时被成为“返璞归真”运动的趋势，影响了很多人，他们避免食用经过包装和加工的食物。
这种对天然食物的青睐一直持续到今天。
从雷蒙德·克劳克快餐生意的成功中，我们可以说社会和经济趋势会影响我们就餐的地点和食物的选择。
