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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 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?
Home Remedies for High Blood Pressure
Learn the home remedies to fight high blood pressure, and reduce the chance of strokes, blindness, kidney failure, and heart failure.
10 Dangerous Everyday Things in Your Home
home.howstuffworks.com/home-improvement/home-diy/dangerous-home-products.htm
You would not believe the dangerous things in your home - everything from air freshener to cosmetics. Learn about the dangerous things in your home.
Could radiant floor heating systems be related to some cancers?
home.howstuffworks.com/home-improvement/home-diy/flooring/radiant-floor-heating-cancer.htm
Some people wonder if radiant floor heating systems could be related to some cancers. Find out if radiant floor heating is related to some cancers.
Has Earth reached its carrying capacity?
science.howstuffworks.com/environmental/green-science/earth-carrying-capacity.htm
Carrying capacity is the idea that sustainability requires balance. Learn about carrying capacity and human population.
How Far Can the Human Eye See?
science.howstuffworks.com/question198.htm
Just how far can the human eye see? There's no exact formula to figuring it out, but we do have an idea.
How Do Energy Drinks Work?
science.howstuffworks.com/innovation/edible-innovations/energy-drink.htm
Energy drinks are everywhere, but how exactly are they supposed to give you energy? What's really in them, and are they safe? Find out.
How Mufflers Work
auto.howstuffworks.com/muffler.htm
Mufflers cancel out most of an engine's noise. Find out how mufflers cancel sound waves, why engines are so loud, and look inside a muffler to learn about backpressure.
How the Environment Has Changed Since the First Earth Day 51 Years Ago
It's been 51 years since the first Earth Day, and while progress has been made in some areas, humanity still has had a major impact on the planet.