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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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The longest a person has survived after a heart transplant is 24 years.

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Video: Depolarization of the SA node, Action potentials of the myocardium & ANS effects

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