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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Blood is approximately twice as thick as water because of the cells and other components found in it.