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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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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There are more sensory neurons in the tongue than in any other part of the body.

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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

The Abecedarian study was designed to help very low-income African American children prepare for ... The Abecedarian study was designed to help very low-income African American children prepare for ...
Record the AC frequency as shown on the meter and subtract 50 from the reading (e.g., 60.50 -50.00 = ... Record the AC frequency as shown on the meter and subtract 50 from the reading (e.g., 60.50 -50.00 = ...
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Video: Heart sounds

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