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What can your spit tell you about your DNA?
science.howstuffworks.com/life/genetic/spit-dna.htm
Doctors always want your blood, but one day, a health care professional may ask you to open up and say, "Ptooey!" Why? Your spit holds a mother lode of biological information.
10 Most Popular Hitch Accessories -- and Why?
The right hitch accessories such as safety chains can make or break your towing experience. Find out what the 10 most popular hitch accessories are.
Alpha Lipoic Acid: What You Need to Know
health.howstuffworks.com/wellness/natural-medicine/alternative/alpha-lipoic-acid.htm
Alpha lipoic acid can be used to treat many ailments and illnesses. Learn all about alpha lipoic acid and other alternative medicines at HowStuffWorks.
How Office Politics Work
money.howstuffworks.com/office-politics.htm
Office politics involves struggles for power, so it's good to form good working relationships. Learn how office politics works and how to play the game.
Bacterial Skin Infections
health.howstuffworks.com/skin-care/problems/medical/bacterial-skin-infections.htm
Bacterial skin infections are common skin problems. Learn more about bacterial skin infections at HowStuffWorks.
How Gas Pumps Work
auto.howstuffworks.com/gas-pump.htm
Gas pumps are one of those little things you interact with all the time, but don't know much about. Learn about gas pumps at HowStuffWorks.
How Flintlock Guns Work
science.howstuffworks.com/flintlock.htm
Flintlock guns were extremely important weapons in the American Revolution; they also formed the foundation of all modern guns. Learn about the gun that started it all.
How to Set Up an Aquarium
animals.howstuffworks.com/pets/aquarium-setup.htm
Knowing how to set up an aquarium is vital to the survival of your freshwater fish. Learn the important initial steps of how to set up an aquarium.
How Igloos Work
people.howstuffworks.com/igloo.htm
Igloos may be made by the Inuit as temporary houses to use on fishing and hunting expeditions. Read about igloos and find out how to build an igloo.
How Musketeers Worked
history.howstuffworks.com/historical-figures/musketeer.htm
Who were the musketeers and what were they fighting for? Read about the musketeers of 17th century France at HowStuffWorks..