Paramedics at the London Ambulance Service are urging Londoners to stay safe during this week’s hot weather and to call 999 only in life-threatening emergencies.
High temperatures can significantly affect people’s health, leading to increased calls for issues like difficulty breathing, dizziness, and fainting. There are also more reports of chest pains and heart problems. During heatwaves, calls related to respiratory illnesses surge, and cardiac issues often become more common in the days following the extreme heat.
Michael Agnew, a paramedic in the Service’s clinical hub, said: “We hope people enjoy the warmer weather we’ll have in the capital this week. However, our 999 call handlers can take a thousand more calls a day during these temperatures, so we would urge everyone to take a little extra care.
“Please be aware of the dangers of spending too long in the sun and the health risks of hot weather. Avoid prolonged exposure to direct sunlight – especially between 11am and 3pm when the sun’s UV rays are at their strongest. Try to stick to shade and wear sun cream.
“In warmer weather it’s also important to drink plenty of water. If you’re heading out, take a bottle of water with you. Keeping hydrated is especially important if you’re drinking alcohol.
“Older people, the very young and people with pre-existing conditions are more at risk in hot weather – so please look out for neighbours, family or friends who may need some help and make sure they are able to keep cool during the heat.
“People can start to feel ill a few days after the hot weather so please do continue to look after yourself and others.”
London Ambulance Service added “We are always here to help if you need us, but we would ask that people follow advice, use our service wisely and contact your GP, pharmacy or NHS 111 where possible”.
The Met Office has issued a Yellow weather warning with temperatures this week expected to reach 32 degrees in the capital.

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