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Author Question: What is one of the main problems faced by researchers who want to test their theories ... (Read 107 times) |
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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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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Vaccines prevent between 2.5 and 4 million deaths every year.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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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.