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What Are the 17 Symptoms of PTSD?
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Post-traumatic stress disorder was first described by a doctor treating patients during the Civil War. Learn about post-traumatic stress disorder.
How Lowriders Work
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Lowriders are modified cars with suspensions that can be raised and lowered. Learn about lowriders, different types of suspensions and lowrider life.
How to Improve Your Memory
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You can make the decision to improve your memory and get better at remembering things today! Learn about sharpening your memory at HowStuffWorks.com.
11 Inventions That Changed the World as We Know It
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Inventing a useful product or process is serious business - turn a great idea into a marketable widget, and you could earn millions of dollars. But that doesn't mean your widget has to be straitlaced and conservative.
10 Inventions by Thomas Edison (That You've Never Heard Of)
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It's common knowledge that Thomas Edison invented the incandescent light bulb and the phonograph, but did you know he also developed concrete furniture and a phone to communicate with the dead?
Causation vs. Correlation Explained With 10 Examples
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If you step on a crack, you'll break your mother's back. Surely you know this jingle from childhood. It's a silly example of a correlation with no causation. But there are some real-world instances that we often hear, or maybe even tell?
HowStuffWorks Newsletter Quiz
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If you took one of our recent newsletter quizzes, you've come to the right place for the answers.
How Sleepwalking Works
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Sleepwalking is an abnormal behavior that occurs while someone is sleeping. Learn more about sleepwalking and find out how sleepwalking is treated.
How Lawsuits Work
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Lawsuits are a common part of life these days. Learn about civil vs. criminal lawsuits, steps to filing lawsuits, settling lawsuits out of court and the trial process and lingo.
How Gin Works
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In the 18th century, gin was considered as addictive as crack. Then it became part of a cure-all for tropical ailments. Learn more about gin's storied history.