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People about to have surgery must tell their health care providers about all supplements they take.
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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.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.