Overview

• The Met Office has issued a yellow heat-health alert until July 15 and forecasts weekend highs up to 34 °C across much of the UK.
• Experts warn that car cabins act like greenhouses, driving interior temperatures up to 50% above outside levels within an hour.
• The MHRA advises removing medicines and medical devices from vehicles to prevent heat-induced potency loss and device malfunction.
• Motoring specialists caution that lithium-ion electronics, pressurised aerosols and carbonated drinks may swell, leak or ignite in hot cars.
• Authorities recommend taking out suncream, contraceptives and plastic water bottles to avoid active ingredient breakdown and chemical leaching.