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Perfume is any substance that you wear and that smells. There are no requirements for it to smell good. Learn more about perfume at HowStuffWorks.

Soccer, or football, is the most popular sport in the world. Learn about soccer, soccer leagues, soccer rules and great soccer players.

Many people hide body parts that they don't like. Is your No. 1 insecurity on our list? See 10 common body parts people hide.

Corsets are notorious for discomfort. What are they? Who wears them? And why would they? Read all about corsets at HowStuffWorks.

Animal testing has a long, gruesome history, but it's also saved countless human lives.

Filmmaking in the 1920s taught us how to make great movies. See 10 lessons we learned from filmmaking in the 1920s to learn more.

Casinos bring in billions of dollars in revenue each year. Learn about casinos and find out how security keeps casinos safe and fair.

Natural selection is the idea that organisms that are best suited to survive pass their traits down. Is it true that only the strong survive?

When sound waves strike the ear, these waves produce the sensation of sound. Let's take a look at how sound waves work.

Do you know what saunas do for your body? Learn about the history, function and health/skin benefits of saunas at HowStuffWorks.

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