Boris and Jo Johnson; Liam and Noel Gallagher; Joan Fontaine and Olivia de Havilland - in every field, you’ll find examples of toxic sibling-on-sibling rivalry. But you don’t have to be a famous politician or rock star to fall out with your brother or sister. Have you struggled with sibling rivalry?
How to get in touch
Were you always in the shadow of a sibling - or were you the golden child? Do you feel like sibling rivalry damaged your life? Or did a bit of healthy competition spur you onto greatness? We want to hear your stories.
Tell us your about your experiences in the form below – one of our journalists may contact you to find out more about your experiences, and we will feature some of the best contributions.