Maryams health crossword

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Across
  1. 3. natural chemical in the brain that helps relieve pain, reduce stress and boost feelings of happiness
  2. 4. when your body reacts badly to things like pollen or dust
  3. 6. taking in sufficient water
  4. 7. overwheight due to the gain of calories
  5. 8. the energy process your body uses to turn food into energy
Down
  1. 1. a complex network of cells, tissues, organs, and the substances they make that helps the body fight infections and other diseases
  2. 2. medical specialisation of the heart and blood vessels
  3. 5. the energy you get from food to help your body move and grow
  4. 6. the scientific study of how to preserve health and prevent disease