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If kids can sometimes regenerate their fingertips, why can't adults? A bunch of handy scientists are trying to figure that out.

You've heard the saying for ages, but exactly why is it so dangerous to go swimming right after you eat?

Adobe construction is one of the oldest building techniques known to man, but why is it now one of the hottest modern housing trends?

I keep hearing about some drug called "OxyContin" in the news. What is it? Why all the fuss?

There's no such thing as a salted caramel tree, so where did the delicious concoction come from and why is it so yummy?

Nutty Putty Cave, near Salt Lake City, Utah, was discovered in 1960 and sealed up forever in 2009. But why?

Adding the word 'sorry' to a rejection just makes it worse, says a new study. HowStuffWorks explains why.

Have you ever wondered why some purebred dogs come with a price tag higher than an international flight?

It's a lot harder to develop a breath test for marijuana and opioids than it is for alcohol. HowStuffWorks explains why.

A stock market crash can devastate the economy. Learn how and why the Fed stepped in after the subprime mortgage fallout.

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