TV doctor Hilary Jones issues urgent warning following new data showing over 2,000 heat-related deaths in the UK last summer. The UKHSA reports 92% of deaths were in people over 65, with a total of 16,239 years of life lost. The warning highlights the increased risk of heatwaves due to climate change. Dr Jones advises avoiding sun between 11am-3pm, staying hydrated, and keeping cool with shade and cold showers to prevent heatstroke. The warning comes as climate change is expected to exacerbate heatwaves in the UK.