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What evolutionary purpose would shame serve? Learn more about the origins of shame in this HowStuffWorks Now article.

The smell of Play-Doh® modeling compound is instantly recognizable to millions of people. Learn about its history and why it acts the way it does.

Do you still experience horrific sleep visions? Don't worry, you'll grow out of it - hopefully. Learn all about night terrors at HowStuffWorks.

Is it possible - just maybe - that spoilers don't actually (spoiler!) spoil all the fun? Learn about a super fan's worst nightmare at HowStuffWorks.

How to draw Elasmosaurus is presented at HowStuffWorks. Learn how to draw Elasmosaurus.

Some worry that the electromagnetic fields lead to cancer. Learn more about how electric cars and hybrids affect your health.

The Grim Reaper is the black-cloaked, scythe-wielding personification of death. Learn why the Grim Reaper is so grim and why he's a guy.

HGH aging prevention is a hot topic. Could this hormone reduce wrinkles, increase muscle mass and more? Take a look at HGH aging prevention.

There are lots of ways to lose your mind, and some of them are surprising. What's happening when you 'lose your mind'? Find out at HowStuffWorks.com.

To hear in space involves several variables, including sound movement and environmental medium. Learn if humans hear in space.

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