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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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.