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關(guān)于英語(yǔ)健康生活演講稿
演講稿可以起到整理演講者的思路、提示演講的內(nèi)容、限定演講的速度的作用。在日新月異的現(xiàn)代社會(huì)中，在很多情況下我們需要用到演講稿，來(lái)參考自己需要的演講稿吧！以下是小編為大家收集的關(guān)于英語(yǔ)健康生活演講稿，歡迎大家借鑒與參考，希望對(duì)大家有所幫助。
Women 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.
Asecond 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.
據(jù)美國(guó)研報(bào)告，兒童時(shí)期經(jīng)常吃豆類(lèi)食品的女性患乳腺癌的風(fēng)險(xiǎn)較校另一組研究人員則向美國(guó)癌癥研究協(xié)會(huì)提出，一周吃幾次魚(yú)的男性患結(jié)腸癌的幾率較校
這兩項(xiàng)研究進(jìn)一步證明了飲食對(duì)于防癌的作用。癌癥防治專家認(rèn)為，在所有種類(lèi)的癌癥中，多達(dá)三分之二都是由吸煙、節(jié)食及缺乏鍛煉等不健康的生活方式造成的。
美國(guó)全國(guó)癌癥研究所和夏威夷大學(xué)的研究人員發(fā)現(xiàn)，在5歲至11歲時(shí)經(jīng)常吃豆腐、味噌等豆類(lèi)食品的女性患乳腺癌的幾率要低58%。至于豆類(lèi)食品為什么可以防癌還不清楚，不過(guò)大豆中所含的名叫異黃酮的化合物具有雌性激素的作用。
另一項(xiàng)研究表明，一周吃魚(yú)至少五次的男性患結(jié)腸癌的風(fēng)險(xiǎn)要比那些一周都吃不到一次魚(yú)的男性低40%。
很多魚(yú)類(lèi)中所富含的Omega-3脂肪酸能夠抑制環(huán)氧化酶2的活性。環(huán)氧化酶2會(huì)引起發(fā)炎，這可能會(huì)刺激腫瘤的生長(zhǎng)。
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