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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

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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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Gunnera growing on nitrogen-poor soil. Gunnera growing on nitrogen-poor soil.
An emission tester that uses nitrogen to pressurize the fuel system. An emission tester that uses nitrogen to pressurize the fuel system.
Three pathways of complement combined. (a) Figure shows a summary of how each pathway proceeds. (b) ... Three pathways of complement combined. (a) Figure shows a summary of how each pathway proceeds. (b) ...
Graph shows the living arrangements of Canadian seniors Graph shows the living arrangements of Canadian seniors
The nucleolus (arrow) is a prominent structure in the nucleus The nucleolus (arrow) is a prominent structure in the nucleus
Plasmodium parasites (arrow) attacking and infecting red blood cells. Infection by Plasmodium causes Plasmodium parasites (arrow) attacking and infecting red blood cells. Infection by Plasmodium causes
Video: Inflammatory response Animation

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