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Author Question: Carol is having difficulty with subtraction problems. Over a five-day period, out of 20 problems, ... (Read 492 times) |
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.