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Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

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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.

Functional MRI Scans These scans of human brains show localized average increases in neural activity Functional MRI Scans These scans of human brains show localized average increases in neural activity
Sound Waves Sound Waves
Subtle Differences in Written Words Subtle Differences in Written Words
Children can fast map the meanings of words in a single exposure. Children can fast map the meanings of words in a single exposure.
The breaking down of a sound—in this case, the sound of a clarinet—into its component sine waves ... The breaking down of a sound—in this case, the sound of a clarinet—into its component sine waves ...
Sound intensity log question Sound intensity log question
Video: Role of the respiratory system - effect of altered ventilation rates

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