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How Performance-enhancing Drugs Work
entertainment.howstuffworks.com/athletic-drug-test.htm
Performance-enhancing drugs are the frequent subject of controversy in the sporting world. Learn about performance-enhancing drugs and doping practices.
How Human Reproduction Works
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/conception/human-reproduction.htm
Reproduction is a basic drive in all animals, including humans. Think you know what human reproduction is all about? Discover the biology of sex.
How the First Olympics Worked
entertainment.howstuffworks.com/first-olympics.htm
Before today's spandex-clad (and some sequined) Olympians set their sights on the gold, silver or bronze, ancient Greeks competed for victory. How did the games begin, and why were the athletes gunning for olive oil?
How Urban Planning Works
science.howstuffworks.com/environmental/green-science/urban-planning.htm
Urban planning works to design a city so that it can be used effectively by its people. Find out more about how urban planning works.
How Gray Water Reclamation Works
science.howstuffworks.com/environmental/green-science/gray-water-reclamation.htm
Gray water reclamation is a developing way to reduce water waste and go green. Find out how gray water reclamation works.
Bipolar Disorder Overview
health.howstuffworks.com/mental-health/mental-disorders/bipolar-disorder.htm
Bipolar disorder, also called manic-depressive disorder, affects millions of Americans. Learn about mania, mood swings and how bipolar is treated.
How Schizophrenia Works
science.howstuffworks.com/life/inside-the-mind/human-brain/schizophrenia.htm
Schizophrenia is often confused with split personality disorder. Find out exactly what schizophrenia is in this article.
Railroads During the Depression
history.howstuffworks.com/american-history/great-depression-railroads.htm
Railroads struggled during the Great Depression, as did the rest of the nation. Read about railroads of the Depression era and the New Deal.
Modern Decline of Railroads
history.howstuffworks.com/american-history/decline-of-railroads.htm
The decline of railroads came about during the 1960s and 1970s as the automobile dominated transportation. Read about the decline of railroads.
How Food Cravings Work
science.howstuffworks.com/innovation/edible-innovations/food-craving.htm
As you surf the Web, your mind is distracted by the thought of warm cookies floating in cold milk. Will this craving ever subside, or do you need chocolaty satisfaction ASAP?