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Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Unique communities may result from distinct environmental conditions. Unique communities may result from distinct environmental conditions.
Two species of diatoms showing clearly distinct morphologies. Two species of diatoms showing clearly distinct morphologies.
The Pleasure of Taste The Pleasure of Taste
Study of Taste Categories among the Weyéwa of Sumba, Indonesia Study of Taste Categories among the Weyéwa of Sumba, Indonesia
Smell and Taste Smell and Taste
Sulfur dioxide is a toxic gas, has a distinct, pungent odor, and contributes to acid rain and ... Sulfur dioxide is a toxic gas, has a distinct, pungent odor, and contributes to acid rain and ...
Video: Dorsal Recumbent Position

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