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There are more nerve cells in one human brain than there are stars in the Milky Way.

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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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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Four types of cellular responses to positional information in animals. Four types of cellular responses to positional information in animals.
This billboard in India caught my attention. As the text indicates, even though India is ... This billboard in India caught my attention. As the text indicates, even though India is ...
Steps in protein synthesis: The DNA is used as a template to make mRNA (transcription). The mRNA is ... Steps in protein synthesis: The DNA is used as a template to make mRNA (transcription). The mRNA is ...
The science-based DRIs serve as the basis for information The science-based DRIs serve as the basis for information
Base Composition of the DNA Template Base Composition of the DNA Template
The correspondence of mRNA to DNA template and coding strands The correspondence of mRNA to DNA template and coding strands
Video: Introduction to Spirometry

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