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HowStuffWorks looks at the big diseases that may occur if you have rotting teeth.

Dentists treat diseases, disorders, and malformations of the teeth, mouth, and jaws. Learn about what dentists do.

Hereditary illnesses can be frightening to new parents, but they are usually rare. Learn about various genetic diseases and their causes.

Is gingivitis contagious? Find out if you can catch gum disease from other people and if gingivitis is contagious.

Ginger is an herb that has an ability to combat a number of diseases and conditions. Learn how to use ginger as a healing agent.

Jugular venous distension can be a sign of heart disease. Learn about the diagnosis and treatment of jugular venous distension.

Breast cancer is a disease impacting the lives of millions of women. Learn how breast cancer works, it symptoms and treatments.

From tobacco smoke enemas to whirling chairs, doctors have tried almost everything to cure human disease.

How do infections go airborne? Learn about the science behind how infections hang in the air and how exactly infections go airborne.

Airlines are flying planes with no passengers, due to the outbreak of coronavirus, but also for economic reasons having nothing to do with disease.

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