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The familiar sounds of your heart are made by the heart's valves as they open and close.

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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Water movement between capillaries and interstitial fluid. Water movement between capillaries and interstitial fluid.
Bay (left) and chestnut (sometimes called "sorrel") are two of the most common coat colors Bay (left) and chestnut (sometimes called "sorrel") are two of the most common coat colors
Water Potential, Solute Potential, and Pressure Potential Water Potential, Solute Potential, and Pressure Potential
Mean atmospheric water vapor Mean atmospheric water vapor
Cold, dense water accumulates around the Arctic and Antarctic Cold, dense water accumulates around the Arctic and Antarctic
Table salt (NaCl) molecules dissolving in water, resulting in Na+ and Cl– ions surrounded by ... Table salt (NaCl) molecules dissolving in water, resulting in Na+ and Cl– ions surrounded by ...
Video: Ventilation - phases and driving forces

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