By Rachel Schraer
Olivia Gauregui spent much of her childhood in hospital due to illness, but the 14-year-old is now set to represent Great Britain at the TeamGym European Championships.
Anthea Smith tells the BBC's Laura Mcmullan, who also had skin cancer, that she used sunbeds for years.
A petition has been launched calling for teachers to be allowed to apply sun cream with parents' consent.
By Carys Betteley