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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
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People about to have surgery must tell their health care providers about all supplements they take.
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There are approximately 3 million unintended pregnancies in the United States each year.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.