The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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The average office desk has 400 times more bacteria on it than a toilet.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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There are more bacteria in your mouth than there are people in the world.
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.