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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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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.

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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

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Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Countercurrent heat exchange in dolphin flippers promotes conservation of body heat. Countercurrent heat exchange in dolphin flippers promotes conservation of body heat.
2-1b Structure of the water molecule 2-1b Structure of the water molecule
Waves in Deep and Shallow Water Waves in Deep and Shallow Water
Daily Water Balance in the Body Daily Water Balance in the Body
The diminishing effects on body weight of a low-calorie diet and a high-calorie diet. The diminishing effects on body weight of a low-calorie diet and a high-calorie diet.
The gel–liquid crystalline phase transition in a synthetic lipid bilayer The gel–liquid crystalline phase transition in a synthetic lipid bilayer
Video: Wound Cultures

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