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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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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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Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Some of the fastest growing religions in America are non-Judeo-Christian religions. This photograph Some of the fastest growing religions in America are non-Judeo-Christian religions. This photograph
This young boy with muscular dystrophy needs to receive tube feedings and home nursing care. He atte This young boy with muscular dystrophy needs to receive tube feedings and home nursing care. He atte
Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s
Adults in the middle-aged group (37–42 years) score higher on measures of generativity than either ... Adults in the middle-aged group (37–42 years) score higher on measures of generativity than either ...
Group of Geese Group of Geese
Group Defenses: Musk Oxen Group Defenses: Musk Oxen
Video: Protein catabolism (Krebs cycle) and Protein anabolism (protein synthesis)

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