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Did you know?

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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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

The American Sign Language Alphabet. The American Sign Language Alphabet.
Tinel’s sign Tinel’s sign
Nucleotide excision repair (NER) of a UV-induced thymine dimer Nucleotide excision repair (NER) of a UV-induced thymine dimer
Both Chvostek sign, A, and Trousseau sign, when positive, B Both Chvostek sign, A, and Trousseau sign, when positive, B
Epithelial injury and repair in airway disease Epithelial injury and repair in airway disease
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

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