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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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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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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.

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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Difference between Asian (left) and African (right) elephant ears. Difference between Asian (left) and African (right) elephant ears.
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Example of an Explanation of Benefits statement. Example of an Explanation of Benefits statement.
Difference Between Solar and Sidereal Day Difference Between Solar and Sidereal Day
Difference-Between-Carbohydrates-and-Lipids-infographic Difference-Between-Carbohydrates-and-Lipids-infographic
Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ... Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ...
Video: Cardiac Cycle (Part 2 of 4)

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