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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
There are more sensory neurons in the tongue than in any other part of the body.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.