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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.
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The longest a person has survived after a heart transplant is 24 years.