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Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

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Thyroid conditions may make getting pregnant impossible.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

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A poster encourages women to work in munitions to support the war effort. A poster encourages women to work in munitions to support the war effort.
Mean scores for Erikson’s stage V (Identity) for two cohorts. Scores for both cohorts increase ... Mean scores for Erikson’s stage V (Identity) for two cohorts. Scores for both cohorts increase ...
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The following sentence is written in the passive voice: The man rode his skateboard to work ... The following sentence is written in the passive voice: The man rode his skateboard to work ...
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Video: Cell mediated immune response to a viral infection Animation

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