跟读练习: What your poop can tell you about your health - Hannibal Person - 通过YouTube学习英语口语
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The average person poops out approximately 11,030 kilograms of cumulative waste.
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The average person poops out approximately 11,030 kilograms of cumulative waste.
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That's the equivalent of more than six SUVs.
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Now, oftentimes, that poop is brown.
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But why is that, considering all the colorful comestibles one consumes?
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And what's going on when poop appears in different colors and textures?
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Say you’re eating a beautiful, rainbowy salad.
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Your teeth and saliva first help break down the food and add lubrication.
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Each bite enters your esophagus and sequential muscle contractions push it towards your stomach.
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There, the mixture combines with the clear, hydrochloric acid and enzyme-packed digestive juices your stomach started secreting as you prepared to eat.
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These juices further degrade your food, and once your stomach stops churning, its partially digested contents, called chyme, slowly empty into your small intestine.
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Your pancreas releases another clear fluid loaded with even more enzymes, which get to work breaking carbohydrates down into monosaccharides, and proteins into amino acids and peptides.
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At this point, your liver also sends in bile, which is tinted yellow.
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It contains salts that help separate the fats from your food so enzymes can also transform them into smaller units, like monoglycerides and fatty acids.
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Specific intestinal cells can then absorb these nutrients into the bloodstream.
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Bile is especially important on the color front.
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The reason it's yellow is because one of its major components is bilirubin, a yellowy compound produced by the breakdown of hemoglobin, the protein that helps your red blood cells transport oxygen.
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By this point, the digestive system has broken down and absorbed lots of nutrients and added bile to the mix, so we’ve gone from a rainbow medley to a greenish-yellow liquid.
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But the transformation isn’t yet complete.
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This mixture then reaches the large intestine, where microbes break the bilirubin down into stercobilin.
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This compound is brown, and it's what lends poop its classic color.
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The large intestine then absorbs excess water, and the semi-solid brown mass is soon ready for excretion.
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But of course, it doesn’t always go this way.
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Our bodies have a hard time processing certain pigments.
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Red beets, for example, are packed with betanins— large, pigmented molecules that our bodies only absorb about half the time, leading to red-tinged waste.
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Indeed, loading up on any one kind of colorful food can overwhelm the usual processes that degrade and absorb the pigment, resulting in poos of different hues.
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Meanwhile, certain medicines that treat upset stomachs may contain bismuth, which reacts with sulfur in the digestive tract to form bismuth sulfide, turning poop pitch-black.
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None of these color shift scenarios are cause for concern, but some changes in poop characteristics can indicate when something’s not quite right.
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Ideally, poop is brown, semi-soft, sausage shaped, and easy to pass.
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Constipation can be a sign of dehydration, insufficient fiber, or another digestive disruption.
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And diarrhea might be greenish because it traversed the digestive tract too quickly for bacteria to transform bilirubin into stercobilin.
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This might happen because of disturbances including food intolerances, infections, and inflammatory diseases.
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Yellow, smelly, floating poops could mean the pancreas isn’t producing all the digestive enzymes needed to break down fats in the small intestine.
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Pale poop may come to pass when bile isn't entering the small intestine, suggesting a liver, gallbladder, or pancreas problem.
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And red or black poop can indicate internal bleeding from any number of intestinal abnormalities.
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Considering how small changes in diet and lifestyle can cause big shifts in bowel movements, a couple days of colorful poops, constipation, or diarrhea are generally benign.
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But it’s worth monitoring the situation in case things don’t return to normal within a week.
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In those scenarios, it's a good idea to get a doctor on the case.
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Blood, discomfort, and persistent constipation, diarrhea, narrow poops, or lack of relief from bowel movements can indicate more serious digestive issues.
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This includes blockages, inflammation, bowel diseases, and cancers.
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Your bowels will only benefit from early intervention.
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So, don’t be afraid to take to the toilet, face your feces, and examine your excrement.
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There’s nothing to be ashamed of— but lots to learn about the colorful choreography going on inside.
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关于本节课
在本节课中，学习者将通过深入了解身体排便过程中的健康信息，提升英语口语能力。我们将探讨排便的颜色、质地之间的差异以及与健康状况的关系，从而增强对与健康相关的词汇的理解。
关键词汇与短语
- 消化系统 - 指身体分解和吸收食物的系统。
- 胆汁 - 肝脏分泌的液体，帮助消化脂肪。
- bilirubin - 从血红蛋白分解产生的黄色化合物，与粪便颜色相关。
- 便秘 - 排便困难的状态，可能由于脱水或纤维不足引起。
- 腹泻 - 排便频繁且水分含量过高的状态。
- 幽门 - 食物从胃流入小肠的 gate。
- 食物不耐症 - 身体无法正常消化某些食物的状态。
- 健康状况 - 反映身体总体状态的指标，包括消化系统。
练习技巧
在观看视频时，尝试进行英语影子跟读。注意演讲者的语速和语调，尽可能模仿他们的发音和节奏。虽然视频内容信息量较大，但通过重复演练，能够提高你的流利度和自信心。使用shadow speech和shadowspeaks这样的技巧，可以帮助你更好地掌握难度较高的发音和表达方式。每当你听到与健康或消化系统相关的术语时，要主动重复，强化记忆。同时，关注视频中医生建议的健康警示，例如便秘或腹泻的表现，这不仅丰富了你的词汇量，也为雅思口语练习提供了实际应用的背景。通过这种方式，你不仅可以提高自己对健康话题的认识，还能够将这些知识运用到实际的口语交流中。
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。