People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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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.
Electron Shells Determine the Reactivity of Atoms.
Electron-micrograph of human sperm.
Color-enhanced scanning electron micrograph of HIV virus (red) infecting T-helper cells (green).