So can I eat my noodles if a dog pooped nearby? For the most part, nasty smells are “CAUTION” signs, not the cause of harm.

Smell is often dismissed as a less important sense, but it makes our lives much more vivid, says Jonas Olofsson ...

But a bad smell without pain may also indicate an underlying health condition. Urine is a liquid waste product excreted by your body after the kidneys filter out your blood and tissues.

One user wrote, "China is hygienic and very clean and even people are so clean how u got a bad smell. I too have gone to China but never faced anything like this in any place here it's so clean ...