Learn it!

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Across
  1. 2. Process your metabolic waste and filter excess water in your body.
  2. 4. Number of kidneys we have in our body.
  3. 6. Eating too much sugar causes this disease.
Down
  1. 1. Eating less of it, makes you healthier.
  2. 3. Keep fit, do more of it.
  3. 5. 8 glasses a day, keeps the doctor away.