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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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Illicit drug use costs the United States approximately $181 billion every year.
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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
Young adults increase in self-esteem between the ages of 18 and 25, according to this longitudinal s
Special Purpose Checks
Doing Qualitative Research: Designs, Methods, and Techniques
Scientists do research in the laboratory and in the field
Some biology questions
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