How Do ‘Bacteria’ Help or Harm Our Bodies?

Bacteria are tiny creatures that live inside us, some help, some hurt. They can make you feel good or sick, depending on what they do. Imagine your body is like a house, and bacteria are the guests: some clean up, others cause messes.

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Examples

  1. Good bacteria in your stomach help you break down food and make you feel full.
  2. Bad bacteria can cause tooth decay when they feed on sugar.
  3. Yogurt with live cultures helps keep your tummy happy.

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