Former Olympic swimmer Sharron Davies has helped Norwich Union to launch the first ever children's medical "passport" this week.

The new passport will record detailed information about their health, and follows a study showing that 10% of children visit the doctor up to six times a year.

The information will include a child's medical history, allergies and medication, and also contains sections for monitoring the development of eyes, ears and teeth as well as height and weight.

It is designed to be bright colourful and "child-friendly" so parents and children can enjoy using it together.