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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

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The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Mitotic human chromosomes in metaphase Mitotic human chromosomes in metaphase
A karyotype arranges the chromosomes in a standard format A karyotype arranges the chromosomes in a standard format
The substages of meiotic prophase I for the chromosomes The substages of meiotic prophase I for the chromosomes
Mataphase chromosomes Mataphase chromosomes
Number of Chromosomes in Selected Organisms Number of Chromosomes in Selected Organisms
Two different pairs of chromosomes Two different pairs of chromosomes
Video: The Lagging Strand in DNA Replication and Replication in Action

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