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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

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Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

The five different types of leukocytes (white blood cells). The five different types of leukocytes (white blood cells).
Region’s Culture in International Context Region’s Culture in International Context
Types of Radiation Types of Radiation
Three Types of Lipids The three types of lipids vary in structure Three Types of Lipids The three types of lipids vary in structure
Results of mixing blood of the same or differing ABO blood types Results of mixing blood of the same or differing ABO blood types
Plaque formation by rll wild types and mutants Plaque formation by rll wild types and mutants
Video: Cellular slime mold life cycle Animation

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