Nonenal isn't water-soluble, which means it won't dissolve in water and it's hard to wash off.

壬烯醛不溶于水，这意味着它不能在水中溶解并且很难洗掉。

And when those new fats get oxidized, that creates nonenal.

当这些新脂肪被氧化时，就会产生壬醛。

So you get more nonenal, and more Old People Smell.

所以你会产生更多的壬烯醛，以及更多的老年人气味。

Like baby humans, older humans do have a certain odor, and it's likely caused by the chemical nonenal.

像婴儿一样，老年人确实有一定的气味，这很可能是由化学壬烯醛引起的。

Which means that, even after bathing, some nonenal is still left on your body.

这意味着，即使在沐浴后，你的身体上仍会残留一些壬烯醛。

Researchers have found that nonenal begins appearing around age 40, and that the amount of it increases as you age.

研究人员发现壬烯醛在 40 岁左右开始出现，并且随着年龄的增长而增加。

And while many commercial soaps contain deodorants to combat other bodily odors, most don't yet contain deodorants targeted for nonenal.

虽然许多商业肥皂含有除臭剂以对抗其他体味，但大多数尚不包含针对壬烯醛的除臭剂。

And in general, you might even consider nonenal as the smell of a survivor, of experience...or of the most interesting people in the world.

总的来说，你甚至可以将壬烯醛视为挺过困难和有经验的象征… … 或世界上最有趣的人的气味。