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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

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The average adult has about 21 square feet of skin.

Synthesis and major functions of the chief steroid hormones in animals. Synthesis and major functions of the chief steroid hormones in animals.
Steroid hormone interacting with an intracellular receptor. Steroid hormone interacting with an intracellular receptor.
Classification of Sex Steroid Hormones Classification of Sex Steroid Hormones
The renin-angiotensin-aldosterone pathway. The renin-angiotensin-aldosterone pathway.
The conserved DNA-binding domain in steroid receptors The conserved DNA-binding domain in steroid receptors
The renin–angiotensin–aldosterone system The renin–angiotensin–aldosterone system
Video: Mechanics of Sound Animation

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