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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.
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![Robert K. Merton (1910–2003), who spent most of his academic career at Columbia University, was a ...](https://biology-forums.com/gallery/47/medium_599494_07_11_16_11_58_24_240941884.png)