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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.
Top 5 Foods for a Heart Healthy Diet
Foods for a heart healthy diet include whole grains, nuts and fish. Bacon? Cheeseburgers? Not foods for a heart healthy diet. Learn more.
How fMRI Works
science.howstuffworks.com/fmri.htm
fMRI, or functional magnetic resonance imaging, looks at blood flow in the brain to detect areas of activity. Learn about fMRI and its invention.
Rock Garden Ideas
home.howstuffworks.com/gardening/garden-design/rock-garden-ideas.htm
A rock garden can blend beautifully with your garden ideas. Find dazzling ideas and rock garden photos in this article.
Project MKUltra: When the CIA Tested LSD on Unsuspecting Americans
history.howstuffworks.com/history-vs-myth/cia-lsd.htm
CIA obtained LSD for experimental purposes -- CIA operatives tested LSD on unsuspecting Americans in the 1950s. Read about the CIA and LSD in the 1950s.
Why doesn't the FDA regulate herbal supplements?
Why doesn't the FDA regulate herbal supplements? Learn the benefits and dangers of herbs and why they aren't currently regulated by the FDA.
How Cell Phone Jammers Work
electronics.howstuffworks.com/cell-phone-jammer.htm
A cell phone jammer allows people to exploit the vulnerability of the radio spectrum to silence blabbering offenders. See how cell phone jammers work.
How F/A-18s Work
science.howstuffworks.com/f-18.htm
F/A-18s are now the go-to jet for the U.S. Navy and Marine Corps. The reason? They're plenty fast, they can carry a dizzying array of bombs and missiles, they have amazing onboard electronics and they can be reconfigured to accomplish a range of missions. Check out these amazing military machines.
Diet Pills: What You Need to Know
health.howstuffworks.com/medicine/medication/diet-pill.htm
Diet pills are a tempting quick fix for an increasingly overweight American populace. Learn about different diet pills and the dangers of diet pills.
How a Filibuster Works
people.howstuffworks.com/filibuster.htm
What exactly is a filibuster and why are they happening more frequently? Read about filibusters at HowStuffWorks.