Figures have shown the areas of the country with the most overworked GPs, with the hardest hit area having fewer than 40 doctors per 100,000 patients.
A new study by think tank Nuffield Trust showed GPs in Portsmouth, Hull, Brighton and areas of Kent have the equivalent of around 2,500 patients on their books.
The stark figure is less than half than in other parts of the country such as the Wirral and Liverpool, which have double that figure.