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The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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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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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Formation of an atherosclerotic plaque within a coronary artery; may lead to coronary artery disease Formation of an atherosclerotic plaque within a coronary artery; may lead to coronary artery disease
External nose, mouth, and neck. External nose, mouth, and neck.
Anterior neck structures. Avoid massage in anterior neck. Anterior neck structures. Avoid massage in anterior neck.
An inflamed tongue (glossitis) is one symptom of a riboflavin deficiency An inflamed tongue (glossitis) is one symptom of a riboflavin deficiency
The flow of ions through ions channel in myocardial cells The flow of ions through ions channel in myocardial cells
Pain Pain
Video: Cerebral Cortex Animation

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