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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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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Your heart beats over 36 million times a year.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.