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Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

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There are more bacteria in your mouth than there are people in the world.

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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Female leopard in the Sabi Sands area of South Africa. Note the white spot on its tail, used for com Female leopard in the Sabi Sands area of South Africa. Note the white spot on its tail, used for com
A blood smear. The smear reveals representative cells from each formed element group: red blood cell A blood smear. The smear reveals representative cells from each formed element group: red blood cell
David P. Bradley (White Earth Oijbwe, and Mdewakaton Dakota), Indian Country Today. David P. Bradley (White Earth Oijbwe, and Mdewakaton Dakota), Indian Country Today.
Great White Shark (Carcharodon carcharias). Great White Shark (Carcharodon carcharias).
Video: Electrical changes in the heart

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