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It is one of the most common learning disabilities to affect children. Myth: Dyslexia is rare. Fact: In the United States, NIH research has shown that dyslexia affects 20%, or 1 in every 5 people. Some people may have more mild forms, while others may experience it more severely
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an airbound virus or disease or a nasty dirty infection
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b) histamine stimulate pain receptors
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The repolarization or falling phase is caused by the slow closing of sodium channels and the opening of voltage-gated potassium channels. As a result, the membrane permeability to sodium declines to resting levels.