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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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The average office desk has 400 times more bacteria on it than a toilet.

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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
On average, students in Roman Catholic schools score higher on national tests than students in ... On average, students in Roman Catholic schools score higher on national tests than students in ...
Example of an approximately 37,500 probespotted oligo microarray. Example of an approximately 37,500 probespotted oligo microarray.
How to determine if a table of values represents a linear or quadratic relationship How to determine if a table of values represents a linear or quadratic relationship
A blade and assorted plates for a standard grinder A blade and assorted plates for a standard grinder
The Plunger and Barrel of a Standard Syringe The Plunger and Barrel of a Standard Syringe
Video: Structures that affect circulation - kidneys and blood volume and skeletal muscle pumping

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