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Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.