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リスニング音声も
朝活ミニテスト 第28回
制限時間 10分・全10問（リスニングあり）。選択肢を押すとタイマーが自動スタート。
語彙・熟語（大問1形式）
目安 2分30秒空所に入れるのに最も適切なものを1つ選びなさい。
訳：研究によると、抗生物質を繰り返し服用したことで腸内細菌が乱された人は、ある種の感染症にかかりやすくなる可能性がある。
訳：加工食品の多い食事は消化器系の微生物の繊細なバランスを損ない、気分にも影響を及ぼす可能性があると考える研究者もいる。
訳：人間の腸と気分に関する研究の多くは小規模なので、研究者たちは自分たちの結論を暫定的なもので、さらに証拠が出てくれば変わる可能性が高いと説明している。
訳：科学者たちは、神経研究、化学、動物研究の知見を組み合わせながら、腸内細菌からの信号がどのように脳に届くのかを今も解明しようとしている。
訳：その新しいプロバイオティクス飲料は大々的に宣伝されたが、臨床試験ではその効果は期待どおりにはならず、偽薬と比べて何ら優れた結果は出なかった。
長文読解（大問3形式）
目安 4分30秒The Gut-Brain Connection
For centuries, people have spoken of "gut feelings," but only recently have scientists begun to examine seriously whether the digestive system can influence the mind. The gut contains hundreds of millions of nerve cells, leading some researchers to call it a "second brain," and it is linked to the brain by the vagus nerve, which carries signals in both directions. Moreover, the trillions of bacteria living in the intestines produce a range of chemicals, some of which resemble substances the brain uses to regulate mood. These discoveries have raised the intriguing possibility that microbes might affect how people think and feel.
Experiments on animals have produced striking results. Mice raised in completely sterile conditions, and therefore lacking gut bacteria, tend to show exaggerated responses to stress. In some studies, transferring bacteria from anxious mice to calm ones even appeared to make the calm animals more anxious. Such findings have generated considerable excitement, as well as a growing market for products claiming to improve mental health through the gut. Researchers, however, caution against drawing firm conclusions about humans. Laboratory mice live in highly artificial environments, and their digestive systems differ from ours in important respects.
Evidence from humans remains limited. Most studies are relatively small and show only correlations; for example, people with depression often have different gut bacteria from people without it. Yet it is unclear which is the cause and which is the effect, since depression frequently alters appetite and eating habits, which could in turn change the bacteria. A handful of trials have tested whether probiotic supplements can relieve symptoms, but their results have been inconsistent. Many scientists therefore believe that large, long-term studies will be needed before doctors can confidently recommend gut-based treatments for mental illness.
リスニング（Part1 会話形式）
目安 2分M Mom says you've started eating fermented foods every day. What's that about?
W I read that foods like yogurt and kimchi support healthy gut bacteria. My doctor said it couldn't hurt, so I'm giving it a try.
M Have you noticed any difference?
W My digestion seems better, but honestly, I also started exercising at the same time, so it's hard to say which one helped.
M Makes sense. Are you taking those expensive probiotic supplements too?
W No. My doctor told me that the evidence for most of them is weak, and that eating a variety of vegetables is probably more effective.
スピーキング（面接No.3形式）
40秒Do you think people should pay more attention to their diet to prevent illness?
💡 個人の健康だけでなく「医療費の削減」という社会的な視点を入れると面接官に好印象。
模範解答
はい、そう思います。第一に、糖尿病や心臓病など多くの深刻な病気は食習慣と密接に関係しているので、健康的な食事は医療費を減らすことができます。第二に、腸内細菌の研究によれば、食べ物は気分や免疫系に影響する可能性があり、つまり食事は私たちの幸福全体を左右するのです。
💡 個人の健康だけでなく「医療費の削減」という社会的な視点を入れると面接官に好印象。
📝 解答 ― 準1級 第28回
スピーキング模範解答：Yes, I do. First, many serious diseases, such as diabetes and heart disease, are closely linked to eating habits, so a healthy diet can reduce medical costs. Second, research on gut bacteria shows that food may affect our mood and immune system, which means diet influences our overall well-being.
詳しい解説・和訳・スクリプトは解答ページへ：https://www.haradaeigo.com/scbt/ans/p1-28/