The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Beetle Leg close up
How to solve any percent concentration problem
A close relationship between greenhouse gas emissions and a country’s gross domestic product