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為什麼情侶接吻時,不覺得對方的口水噁心? 身體會有什麼變化? ...

Hot 1Viewed 76 times22-3-2022 04:49 PM

 成年後,讓你最「尷尬」的事是什麼?



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還是睡覺流口水,被人發現了......



本以為只有牙牙學語的孩童才會流口水,沒想到成年後依然改不掉這個"習慣"。



口水裡到底有什麼? 為什麼口水聞起來臭臭的,還有那麼多人喜歡接吻? 今天,小九就跟大家聊一聊口水的話題。


一、口水放大2000倍,會看到什麼?



人類的好奇心是無限的,而與之匹配的是強大的行動力!



為了"親眼"看見口水裡有什麼,狂人實驗室做了這個實驗,通過顯微鏡,先把口水放大400倍,再放大至2000倍,驚奇地發現唾液裡面有許多"小蟲"在遊動



放大400倍時,可以看到口腔黏膜脫落的細胞↓



放大2000倍時,可以觀察到口腔上皮細胞的內部結構,例如最上方的細胞核↓


繼續觀察,還能發現依然存活、遊動速度較快的「小蟲」


這些「小蟲」就是口腔里的單細胞微生物。



在我們的口腔里,居住著數以億計的細菌,它們種類繁多,可分為致病菌、非致病菌和有條件致病菌。 有實驗曾推算出,一個健康成年人的一克牙垢中,可以找到100億個細菌;每一克牙齦分泌物中,可以找到厭氧鏈球菌10億個。



口腔中最常見的細菌有葡萄球菌、鏈球菌、厭氧鏈球菌、奈瑟氏菌、范永氏球菌、乳桿菌屬、乾酪乳桿菌、嗜酸乳桿菌等等。 最大的菌族則是鏈球菌、葡萄球菌及乳腺桿菌家族。


當然,口腔中細菌種類也會隨著人的生活習慣而變化,例如口腔不衛生者,會有更多厭氧菌。



二、為什麼口水聞上去那麼臭?



用舌頭在手背上輕舔一口,靜置10秒左右,輕輕一嗅...... 咦,怎麼那麼臭! 按理說,口水的成分99%都是水,本應該無色無味,為什麼會這麼臭呢?



你想的沒錯,口水本身是不臭的,可當它被抹到皮膚上,接觸到空氣,那可就不一樣了。



唾液裡的蛋白質本來被液體包圍,當水分被蒸發風乾,蛋白質就會迅速氧化、分解,生成有味道的硫化物。 此外,如果存在口腔炎、牙結石、牙齦出血、扁桃體結石等口腔疾病,常常滋生腐敗性細菌,此時口水也會有點臭味。


三、情侶接吻時,為啥不會覺得噁心?



看到這裡,不少單身的朋友會發出靈魂拷問:口腔這麼多細菌,接吻時交換口水不會覺得噁心嗎?


你以為接吻只是嘴巴張開,舌頭一卷? 太天真了。 情侶接吻時,身體、心理上的變化會讓他們忽略「口水噁心」的想法。

通過唾液傳播給對方。 從健康的角度,小九還是要給大夥兒提個醒:接吻有風險,親親前該問的東西都要問清楚啊~

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