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The average adult has about 21 square feet of skin.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
Excessive alcohol use costs the country approximately $235 billion every year.
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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