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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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

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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Structure of a polypeptide Structure of a polypeptide
Action of Steroid Hormones Action of Steroid Hormones
Classification of Sex Steroid Hormones Classification of Sex Steroid Hormones
Regular Ways to Fold the Polypeptide Chain Regular Ways to Fold the Polypeptide Chain
Fiber Has Many Health Benefits Fiber Has Many Health Benefits
A gene encodes an RNA, which can encode a polypeptide. A gene encodes an RNA, which can encode a polypeptide.
Video: Chloroplast Structure & Light Dependent Reactions (Photosystem 1 and 2 Cyclic Electron Flow)

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