这些关于身体的困惑终于有答案了！

一直找不到原因和答案，

现在可以松一口气了，

因为这些问题终于被解答了!!

Do feet really get bigger with age?

脚会一直随着年龄长大?

It's certainly possible: After years of wear and tear, tendons and ligaments in your feet may weaken. This can cause arches to flatten, which means feet get wider and longer. It won't happen to everyone, though—people who are overweight, who get swollen feet or ankles, or who have certain medical conditions, like diabetes, are more prone. If it does happen, the average gain is about one shoe size by age 70 or 80.

这是有可能的：经过多年的磨损，脚部的肌腱和韧带会有损耗。这就会使得脚底变平，那么脚就更宽更长了。但不是每个人都会这样，那些很胖、脚或者踝关节浮肿，又或有过某种病症比如糖尿病的人更容易出现这种情况。一般来说到了70或80岁脚会大一码。

How come women always seem colder than men?

女人为什么总比男人感觉更怕冷?

The fairer sex has a higher percentage of body fat and conserves more heat around the core. That helps keep vital organs nice and toasty but not the extremities—and when your hands and feet feel cold, so does the rest of your body. Plus, research suggests that women have a lower threshold for cold than men. When exposed to the same freezing temperature, the blood vessels in women's fingers constrict more than men's do, which is why they turn white more quickly.

女人体内有更高的身体脂肪比例，也会在体内储存更多的热量，这能保持核心器官的运转，但不包括四肢。如果你的手脚感觉冰冷，身体的其他部位也是如此。另外，调查显示女人寒冷的临界值比男人低。在相同温度的严寒环境之下，女人手指血管的收缩度比男人要大，所以它们会迅速变白。

Why does room-temperature coffee taste so bad?

常温的咖啡为何这么难喝?

The temperature affects flavor. Researchers in Belgium found that certain taste bud receptors are most sensitive to food molecules that are at or just above room temperature. So hot coffee may seem less bitter (and, in turn, taste better) because our bitter-detecting taste buds aren't as sensitive when coffee is hot. Odors influence flavor as well, so even the most bitter hot coffee may taste delicious because of its pleasant aroma; room-temperature coffee doesn't smell the same.

温度影响口感。比利时的研究者发现，某些味蕾会对处于室温的食物分子更加敏感。由于我们品尝苦味的味蕾在高温度时并不十分敏感，相对而言热咖啡似乎不那么苦啦(当然口感更好)。气味也会影响口感，所以即使是最苦的热咖啡，也会因为它的香气让人觉得美味，而室温咖啡就没这个香气了。

How come you wake up at night to urinate but not to do anything else?

为什么半夜醒来只想小便?

Because the sophisticated, intelligent neurons in your gut that control colon contractions, which push out waste, are also influenced by your body's circadian rhythm, the internal clock that wakes you when it's light out and makes you feel sleepy at night. So most people don't have the urge to empty their colon in the middle of the night. On the other hand, the bladder, which acts a reservoir for the continuous flow of urine produced in the kidneys, can stretch only up to a certain volume before you gotta go. Normally, you can sleep six to eight hours without having to urinate, but certain medical conditions or drinking too much water before bed can wake you to use the bathroom at night.

这是因为控制着结肠收缩的复杂敏感神经元，也会受到人体生理周期(也就是排便规律)的影响，白天生物钟会让你醒来，晚上会让你睡觉。到了半夜，大部分人并不会急着去排便。另一方面，膀胱一直都储存着肾脏排泄出的不间断的尿液流，到了一定的容量，你就需要上厕所了。一般说来睡眠六到八小时是无需小便的，但某种病症或是睡前多喝水则会使你起夜了。

What makes my stomach growl?

为什么胃会咕噜咕噜叫?

It can be the sound of your digestive juices churning and stomach muscles contracting as they get prepped for food. To avoid those often poorly timed and embarrassing sounds, eat smaller meals more frequently.

这是你胃液翻转的声音，胃部肌肉仍像消化食物一般蠕动时发出声音。要防止这些令人尴尬的提醒饥饿声音，就少吃多餐吧。

Vocabulary：

toasty /ˈtəʊstɪ/ adj. 温暖舒适的 [非正式]

extremity 英 [ɪk'stremɪtɪ; ek-] 美 [ɪk'strɛməti] n. 极端;绝境;非常手段;手足

threshold 英 ['θreʃəʊld; 'θreʃ,həʊld] 美 ['θrɛʃhold] n. 入口;门槛;开始;极限;临界值

colon 英 ['kəʊlən] 美 ['kolən] n. [解剖] 结肠

circadian 英 [sɜː'keɪdɪən] 美 [sɝ'kedɪən] adj. 生理节奏的

growl 英 [graʊl] 美 [ɡraʊl] vi. 咆哮着说

是不是解答了你多年的疑惑呢?

你还想了解哪方面的知识呢?

欢迎留言告诉小编哦~~