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Fluid Overload Edema Overview
health.howstuffworks.com/diseases-conditions/cardiovascular/heart/fluid-overload-edema.htm
Edema is a swelling of the feet, ankle and legs caused by fluid overload. Learn more about edema, its causes and its treatments.
What Are DMT Elves and Who Reports Seeing Them?
health.howstuffworks.com/wellness/drugs-alcohol/dmt-elves.htm
DMT users report seeing otherworldly beings or "DMT entities," commonly described as "DMT elves." What's the science behind these reports?
How American Football Works
entertainment.howstuffworks.com/football.htm
American football is about gaining territory and scoring points. Learn about American football positions, American football rules and see a football field layout.
Could you have a heart attack -- and not know it?
health.howstuffworks.com/diseases-conditions/cardiovascular/heart/heart-attack-no-symptoms.htm
A heart attack with no symptoms is deadly. You're less likely to seek help if you think it's indigestion. Learn about a heart attack with no symptoms.
How Two-line Phones Work
electronics.howstuffworks.com/two-line-phone.htm
Two-line phones incorporate two separate phone lines into one device. Learn how two-line phones work and why business travelers love them.
P90X Diet: What You Need to Know
health.howstuffworks.com/wellness/diet-fitness/diets/p90x-diet.htm
The P90X diet goes along with the P90X workout. See the pros and cons of the P90X diet at HowStuffWorks.
Are Daddy Longlegs Truly Spiders? Setting the Record Straight
animals.howstuffworks.com/arachnids/daddy-longlegs.htm
That's right - daddy longlegs isn't an actual kind of spider, but a colloquial name that's been applied to a wide range of spiders and non-spiders, insects and non-insects.
Do You Know What Continent These Animals Are Native To?
play.howstuffworks.com/quiz/do-you-know-what-continent-these-animals-are-native-to
From scorching hot deserts to freezing cold tundras, towering mountains to deep oceans, every corner of the world is teeming with animal life. Get ready to put your knowledge of zoology to the ultimate test with this animalistic quiz!
How High Can You Score on This Aussie Rules Football Quiz?
play.howstuffworks.com/quiz/how-high-can-you-score-this-aussie-rules-football-quiz
Footy is a way of life in most of Australia. However, any Aussie who has tried to explain the rules to a newcomer knows the sport is anything but simple. Test your knowledge here!
Our Most Difficult Knowledge Quiz
play.howstuffworks.com/quiz/our-most-difficult-knowledge-quiz
Stop yelling at the screen during "Jeopardy" and try a *real* killer knowledge quiz, smart guy! (Or smart gal). We'll put your brain through its paces, we promise!