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Eating spicy foods, such as pizza, may cause a person to feel heartburn. Although the name may imply the heart, heartburn has nothing to do with the heart itself. Heartburn is pain felt in the chest by a burning sensation in the esophagus, which is located close to where the heart is.

Here you can see the pizza passing from the mouth to the esophagus and on to the stomach. At junction between the stomach and esophagus is the lower esophageal sphincter. This muscular sphincter acts as a valve that normally keeps food and stomach acid in the stomach and prevents the stomach's contents from regurgitating back into the esophagus.

However, certain foods may affect the lower esophageal sphincter, making it less effective. That's how heartburn begins. The stomach produces hydrochloric acid to digest food. The stomach has a mucous lining that protects it from hydrochloric acid, but the esophagus does not.

So, when food and stomach acid regurgitate back into the esophagus, a burning feeling is felt near the heart. This feeling is known as heartburn. Antacids may be used to relieve heartburn by making stomach juices less acidic, therefore reducing the burning feeling felt in the esophagus. If heartburn becomes frequent or prolonged, medical intervention may be necessary to correct the problem.

重點(diǎn)詞匯匯總：

spicy /?spa?si/adj. 辛辣的；香的，多香料的；下流的

imply/?m?pla?/vt. 意味；暗示；隱含

 esophagus /?'sɑf?ɡ?s/n. [解剖] 食管；[解剖] 食道

lower esophageal sphincter.食管下端括約肌 /?sf??kt?r/n. [解剖] 括約肌

valve /v?lv/n. 閥；[解剖] 瓣膜；真空管；活門(mén)vt. 裝閥于；以活門(mén)調(diào)節(jié)

regurgitate英 /r??ɡ??d??te?t/ 美 /r??ɡ??rd??te?t/vi. 回流；回涌；反胃；反芻vt. 使回流；使回涌；使反芻

 hydrochloric acid  鹽酸/,ha?dr?'klor?k/adj. 氯化氫的，鹽酸的

 mucous lining粘液外膜

 /?mju?k?s/adj. 黏液的；分泌黏液的

 /?la?n??/n. 襯里；內(nèi)層；襯套

Antacids制酸劑；抗酸藥（antacid的復(fù)數(shù)） /?nt??s?d/

stomach juices胃液

medical intervention醫(yī)療干預(yù)

百度翻譯：

吃辣味食物，如比薩餅，可能會(huì)導(dǎo)致人感到胃灼熱。雖然這個(gè)名字可能暗示著心臟，但胃灼熱與心臟本身無(wú)關(guān)。胃灼熱是由于靠近心臟所在位置的食道中的燒灼感而在胸部感覺(jué)到的疼痛。

在這里，你可以看到比薩餅從嘴到食道，然后到胃。在胃和食道之間的交界處是食管下括約肌。這種肌肉括約肌起到通常將食物和胃酸保持在胃中并防止胃內(nèi)容物回流到食道中的瓣膜的作用。

但是，某些食物可能會(huì)影響食管下括約肌，使其效果不佳。這就是胃灼熱的開(kāi)始。胃產(chǎn)生鹽酸消化食物。胃有一個(gè)粘膜襯里，可以保護(hù)它免受鹽酸的侵害，但食道卻沒(méi)有。

因此，當(dāng)食物和胃酸反流回食道時(shí)，心臟附近會(huì)感覺(jué)到燒灼感。這種感覺(jué)被稱為胃灼熱。抗酸劑可用于通過(guò)使胃液酸性降低來(lái)緩解胃灼熱，從而減少食道中的灼燒感。如果胃灼熱頻繁或延長(zhǎng)，可能需要醫(yī)療干預(yù)來(lái)糾正問(wèn)題。