Zak is 13 and he has haemophilia. His daily routine is a bit different from that of most teenagers. Whereas other children might just need to brush their teeth in the morning, every day Zak has to give himself an injection. In this video, Zak and his family give an insight into what living with haemophilia is really like — the ups and the downs, the misconceptions and the realities. We also hear about the options that might be available in the future for Zak and others with haemophilia if cutting-edge research from University College London leads to a cure.