By AISHA ALI-KHAN PUBLISHED: 01:29, 30 September 2025 | UPDATED: 01:29, 30 September 2025 When I was still a teenager, growing up near Bradford in the 1990s, I defied my family by refusing an arranged marriage – to my own cousin. The prospect terrified me. When close blood relations have children together, the risks of serious birth defects and […]