EXCLUSIVE: Ahead of their rollout across the women’s Rugby World Cup in New Zealand, MailOnline’s Shivali Best visited Cheshunt Rugby Club to see how the mouthguards work.EXCLUSIVE: Ahead of their rollout across the women’s Rugby World Cup in New Zealand, MailOnline’s Shivali Best visited Cheshunt Rugby Club to see how the mouthguards work.Read MoreHealth News | Mail Online