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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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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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Photosynthetic thylakoid membranes and numerous gas vesicles found in a cell of the cyanobacterial g Photosynthetic thylakoid membranes and numerous gas vesicles found in a cell of the cyanobacterial g
Miocene apes were found throughout Europe, continental Asia, and Africa. Miocene apes were found throughout Europe, continental Asia, and Africa.
Shapes of cells found in the brain. Shapes of cells found in the brain.
A History of the World's Religions A History of the World's Religions
Video: Evolutionary tree of life Animation

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