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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
![The nurse needs to inform the patient with impaired vision when a touch is to occur and ask permissi](https://biology-forums.com/gallery/47/medium_2137_17_05_12_2_06_13.jpeg)
![The monthly changes of angle between the direction of illumination by the Sun and viewing from Earth](https://biology-forums.com/gallery/47/medium_12359_23_01_13_7_07_24.jpeg)