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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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In 1864, the first barbiturate (barbituric acid) was synthesized.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

“Mission Accomplished” proclaimed the banner on the USS Abraham Lincoln, where on May 1, 2003, Presi “Mission Accomplished” proclaimed the banner on the USS Abraham Lincoln, where on May 1, 2003, Presi
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