Breaks are important

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Across
  1. 3. experiencing mental or emotional strain
  2. 5. make someone unhappy
  3. 6. the state of being happy
  4. 7. delaying or postponing something
Down
  1. 1. having had normal pattern disrupted
  2. 2. a person’s condition with regard to their mental state
  3. 4. a pause in work