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Did you know?

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.

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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Sequential decline of whale catches in the Antarctic shows the strong effect of human predators. Sequential decline of whale catches in the Antarctic shows the strong effect of human predators.
An experimentally made Oldowan type core. An experimentally made Oldowan type core.
The Primary Sensory Regions of the Brain The Primary Sensory Regions of the Brain
Two models of sensory system organization: The former model was hierarchical, functionally ... Two models of sensory system organization: The former model was hierarchical, functionally ...
Mechanism of the two-component molybdenum-dependent nitrogenase reaction Mechanism of the two-component molybdenum-dependent nitrogenase reaction
Sensory Differences Between Species Sensory Differences Between Species
Video: Brief Summary on Photosynthesis - Animation

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