Do you wish you and your family could be fitter and healthier? Do the BBC Big Challenge with BBC Gloucestershire's support, and as you follow experts' tips and information to help you change your life for the better you can share your experiences on Radio Gloucestershire and this website.

There's also a chance to make a video diary recording the ups and downs of your efforts. Fill in the form below if you are willing to be a Gloucestershire guinea-pig as you follow the BBC Big Challenge - but please note you MUST live in the county.

Anyone living elsewhere can sign up to take part in the Big Challenge at www.bbc.co.uk/bigchallenge