What makes a healthy High Street?
26 March 2015 Last updated at 07:51 GMT
A new study by the Royal Society for Public Health has published a list of the best and worst High Streets in the UK.
It ranked 70 towns and cities according to how many high street businesses have a "negative impact" on health, or help to promote it.
Preston was ranked the worst in the country. The council says it disagrees with the way the list was compiled, but is determined to improve the city centre.
John Maguire reports.