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The horizontal fraction bar was introduced by the Arabs.
The longest a person has survived after a heart transplant is 24 years.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.