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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 CO2 Scrubbing Works
science.howstuffworks.com/environmental/green-science/co2-scrubbing.htm
CO2 scrubbing is one potential solution to reducing our emissions of carbon dioxide. Learn about CO2 scrubbing and find out what the most common processes are.
How Crying Works
science.howstuffworks.com/life/inside-the-mind/emotions/crying.htm
Everyone cries. For some it's an emotional response, while others just shed tears when chopping onions. Are tears a way for us to cleanse our bodies?
How Iron and Steel Work
science.howstuffworks.com/iron.htm
The refining of iron ore is one of the most historically significant achievements of all time. Find out how iron gets turned into steel and what it's used for.
How Reincarnation Works
people.howstuffworks.com/reincarnation.htm
Reincarnation is the concept that the soul, or some aspect of the soul, is reborn into new lives. Learn about the concept of reincarnation in Eastern religion.
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 Political Primaries Work
people.howstuffworks.com/primary.htm
Political primaries are meant to transfer the power of who would run for president from the elite to the voters. Learn about primaries at HowStuffWorks.
How Commercial Jingles Work
money.howstuffworks.com/commercial-jingle.htm
Commercial jingles are written about a product and, if done correctly, can stick in your head for days. Learn about the use of commercial jingles.
What happens when animals evolve in isolation?
science.howstuffworks.com/life/evolution/evolve-in-isolation.htm
Speciation events are when members of the same species separate until they are no longer able to reproduce with each other. Learn more about speciation events.
How Zombies Work
science.howstuffworks.com/science-vs-myth/strange-creatures/zombie.htm
Even if you've never seen a zombie movie, you probably know something about the walking dead. But did you know that zombies have their roots in folklore and -- according to some researchers -- in real events in Haiti?