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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

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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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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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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).

Gunnar Kaasen and Balto, the lead dog on the last relay team of the 1925 serum run to Nome. Gunnar Kaasen and Balto, the lead dog on the last relay team of the 1925 serum run to Nome.
Lead Plumbing Lead Plumbing
Recording a 12-Lead Electrocardiograph Recording a 12-Lead Electrocardiograph
The coagulation cascade. Both the intrinsic pathway and extrinsic pathway lead to a common pathway ... The coagulation cascade. Both the intrinsic pathway and extrinsic pathway lead to a common pathway ...
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Video: Optic Nerve and Optic Disk Animation (Part 1 of 2)

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