The average adult has about 21 square feet of skin.
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There are more bacteria in your mouth than there are people in the world.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Electron Shells and Orbitals
The overlapping relationship among research, evidence-based practice
The structure of skin (a) and epidermis (b) at the microscopic level.
(b) Scanning electron microscopy showing a phagocytic cell in the process of phagocytizing bacteria. ...