Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Cyanide works by making the human body unable to use oxygen.
Examples of pessaries. (A) Various shapes and sizes of pessaries available. (B) Insertion of one typ