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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Cyanide works by making the human body unable to use oxygen.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.