In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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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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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
Chordate characteristics
Spider-characteristics
Locations and Response Characteristics of Photoreceptors
Characteristics of Sound: Frequency and Amplitude
Changes in Land Configuration and Surface Characteristics