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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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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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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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![Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra](https://biology-forums.com/gallery/47/medium_14755_27_08_12_12_14_19_81821620.jpeg)