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Fluoride is added to water in efforts to prevent tooth decay, but many question fluoridation's safety and success. Learn about fluoride in water.

HowStuffWorks takes a look at the amygdala, how it works and whether people can live without one.

Bone infections are uncommon, but can happen. Get informed about bone infections at HowStuffWorks.

Stain removal tools should be near at hand in order to treat stains and spots when they occur. Learn about the tools you need to remove stains fast.

Turmeric is a perennial plant in the ginger family. Learn more about turmeric at HowStuffWorks.

Skin grafts are patches of skin that are attached to help wounds heal. Even though it's incredibly painful, skin graft surgery can save lives.

Coral reefs are the rainforests of the sea, home to many, many marine fish species. Learn more coral reef facts and see coral reef photos and maps.

Gum disease, gingivitis, tooth decay -- they're all related. Learn how you can avoid gum disease and treat gum disease.

Did you know that a fire sprinkler system is designed to be triggered by extremely high heat? Learn all about how a fire sprinkler system works.

A home office can come in all shapes and sizes. Find out how to create a home office, from mapping out your space to choosing equipment.

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