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Text on the reverse side:

As part of studies on the heart rates of couples, one experiment had couples sat facing each other. It showed that after a while, their hearts beat at the same rate.

  • A6 size (148mm x 105mm)
  • Luxury pearlescent eco certified paper
  • Produced in our London studio
  • Trivia fact on the reverse
  • Biodegradable packaging

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