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How Vaccines Work
health.howstuffworks.com/wellness/preventive-care/vaccine.htm
A vaccine is, essentially, a cure for an illness or disease. Who came up with the idea for vaccines and do we give too many shots now?
How Marijuana Works
science.howstuffworks.com/marijuana.htm
Marijuana isn't just a recreational drug for hippies and philosophy majors -- its psychoactive history ranges from Egyptian mummies to modern U.S. politics. What's the big deal about this leafy, green plant?
How Guide Dogs Work
animals.howstuffworks.com/animal-facts/guide-dog.htm
Guide dogs enable visually impaired people to navigate extremely complex environments. And these dogs are even smarter than you think. Find out what it takes to become a guide dog.
How Great White Sharks Work
animals.howstuffworks.com/fish/sharks/great-white.htm
The great white shark tasted fame when it played the villain in the 1975 film Jaws. Learn if the great white shark deserves its killer reputation.
32 Home Remedies for Tartar and Plaque
Learn simple, effective home remedies for preventing and removing tartar and plaque build-up on teeth.
10 Stereotypes About Aging (That Just Aren't True)
health.howstuffworks.com/wellness/aging/aging-process/5-stereotypes-about-aging.htm
Do you imagine getting creakier and crankier as you get older? The way you view aging influences how you age. So what aging myths can be busted?
How Antiques Work
entertainment.howstuffworks.com/arts/artwork/antique.htm
Antiques are defined by being at least 100 years old, but there are many more things to look at. Find out what to look for in antiques.
How Email Works
computer.howstuffworks.com/e-mail-messaging/email.htm
Email gives us the ability to contact any person in the world in a matter of seconds. Find out how email works and how email servers deliver messages.
How Photographic Film Works
electronics.howstuffworks.com/film.htm
Photographic film has been around for more than a century, and it's still the best way to capture an image. Discover what's going on when you take a picture.
How Power Grids Work
science.howstuffworks.com/environmental/energy/power.htm
Electrical power is a little bit like the air you breathe: You don't really think about it until it is missing. There are good reasons the power grid distribution system works the way it does, though it can lead to some big problems.