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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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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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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

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British Output and Productivity Growth, 1760–1913 British Output and Productivity Growth, 1760–1913
Possible Sources of Differences in Output per Worker Possible Sources of Differences in Output per Worker
Intraaortic balloon pump. The balloon deflates during systole, so cardiac output is unimpeded. Intraaortic balloon pump. The balloon deflates during systole, so cardiac output is unimpeded.
Nora Van Elken - Nürnberg (Official Audio) Nora Van Elken - Nürnberg (Official Audio)
Video: Generalized life cycles for plants and animals Animation

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