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Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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Your heart beats over 36 million times a year.

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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

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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.

The actions of Frzb and the Frizzled receptor protein show how embryonic development represents a ba The actions of Frzb and the Frizzled receptor protein show how embryonic development represents a ba
Photograph illustrating the development of an embryo. Photograph illustrating the development of an embryo.
Structure of the Early Universe Structure of the Early Universe
The early hominin evolution The early hominin evolution
Early instructions for administration of the small pox vaccine. Early instructions for administration of the small pox vaccine.
Fetus Development Fetus Development
Video: Contraction cycle of a sarcomere

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