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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

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Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

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

Overview of gas exchange between the environment, blood, and cells. Overview of gas exchange between the environment, blood, and cells.
The Environment Influences Gene Expression The Environment Influences Gene Expression
Producer acquiring energy and nutrients from the environment Producer acquiring energy and nutrients from the environment
A sample of work by a Grade 4 student with a specific learning disorder A sample of work by a Grade 4 student with a specific learning disorder
An 8th grade class develops a linear model that predicts the number of cheerios (a small round ... An 8th grade class develops a linear model that predicts the number of cheerios (a small round ...
Video: Major Elements in Biological Molecules: Carbohydrates

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