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Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Larynx, trachea, bronchi, and lungs with an expanded view showing the structures of an alveolus and Larynx, trachea, bronchi, and lungs with an expanded view showing the structures of an alveolus and
Hartmann Schedel, The Nuremberg Chronicle: View of Venice. Hartmann Schedel, The Nuremberg Chronicle: View of Venice.
Punch bowl with view of Canton. Punch bowl with view of Canton.
Right posterolateral view of articulated vertebrae Right posterolateral view of articulated vertebrae
Lateral view showing pans of hip bone Lateral view showing pans of hip bone
Side view of a jumping spider making a leap Side view of a jumping spider making a leap
Video: Bipolar Disorder

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