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Quick Tips: 5 Tips to Improve Skin Elasticity
health.howstuffworks.com/skin-care/problems/treating/5-tips-to-improve-skin-elasticity.htm
You can slow the aging process by improving your skin elasticity. See these five quick tips on how to improve skin elasticity to learn more.
If diesel engines are more efficient why do most cars have gasoline engines?
auto.howstuffworks.com/question399.htm
Diesel engine efficiency is greater than a regular gasoline engine, but they never really caught on. Learn about some of the diesel engine disadvantages.
How Did the U.S. Look Before the EPA?
people.howstuffworks.com/what-did-country-look-epa.htm
The U.S. has come a long way since forming the EPA in 1970. HowStuffWorks digs out some pics from the National Archives to show just how far.
How Indoor Air Pollution Works
home.howstuffworks.com/home-improvement/household-safety/indoor-air-pollution.htm
Indoor air pollution can be up to 10 times worse than outdoor air pollution. Learn about indoor air pollution, its sources and its health effects.
10 Home Remedies for Body Odor
health.howstuffworks.com/wellness/natural-medicine/home-remedies/home-remedies-for-body-odor.htm
There are many home remedies for body odor that you can use to keep yourself smelling like a rose. Learn about home remedies for body odor.
How has NASA helped save firefighters?
science.howstuffworks.com/innovation/nasa-inventions/nasa-save-firefighters.htm
How has NASA helped save firefighters? Visit HowStuffWorks to learn how NASA has helped saved firefighters' lives.
10 Factors That Affect Your Car's Resale Value
auto.howstuffworks.com/buying-selling/car-resale-value.htm
Trying to sell or trade in your car? Lots of things you might not expect will influence how much you can get for it. HowStuffWorks talks 10 of them.
Understanding the Symptoms of a Bad Oxygen Sensor
Identify and tackle bad oxygen sensor symptoms for optimal vehicle performance. Expert insights on diagnosis and solutions.
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?
Cadmium: The Highly Toxic Metal That Powers the World
science.howstuffworks.com/cadmium.htm
Cadmium is a natural metal and the leading component in rechargeable batteries and solar cells. It is also highly toxic and heavily regulated.