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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Sexual and asexual reproductive cells of fungi. Sexual and asexual reproductive cells of fungi.
A male Lestes dryas in the "spread-winged" posture that gives the family its common name A male Lestes dryas in the "spread-winged" posture that gives the family its common name
Fungi Fungi
The smell, sight, and taste of food, such as freshly baked bread, triggers the release of saliva The smell, sight, and taste of food, such as freshly baked bread, triggers the release of saliva
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
Asexual reproduction in sac fungi Asexual reproduction in sac fungi
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