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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.