World's oldest teenager.

This documentary catches up with Hayley Okines who has been filmed repeatedly over her life. Hayley was born with the rare genetic ageing condition, progeria, as she hits her teens. As always Hayley herself is touchingly optimistic and enlightened about her condition and is keen to be 'a normal teenager.' Her brother and sister are envious of the attention she gets but, as Hayley herself explains, they only see the good sides and not the bad - for instance, although she is often on TV, she has bone and joint pain, has no hair and is at constant risk of a heart attack or a stroke. Hayley is shown planning her autobiography and hoping for a miracle cure (new drug Rapamycin) from America as well as having to wear a hip brace 24 hours a day as her hips keep dislocating. However, all the normal teenage interests such as music and boys are playing on Hayley's mind.