Heart Failure: The Real Danger in the Heat
As the UK swelters under a late June heatwave, with temperatures forecast to reach 40°C in some areas, the greatest threat to life is not heatstroke but heart failure. This warning comes from BBC journalist and former weather presenter Lara Lewington, who explained the physiological risks in a TikTok video.
According to Lewington, when the body gets hot, it directs more blood toward the skin to radiate heat away. This forces the heart to beat harder and faster. For the elderly or those with pre-existing conditions, this strain can push their system to its limit, increasing the risk of stroke, heart attack, or heart failure. She urged people to stay hydrated, keep cool, and check on vulnerable relatives.
Record-Breaking Temperatures Expected
The Met Office has issued red weather warnings for parts of England and Wales for today, Wednesday, and Thursday. Temperatures could approach the UK's all-time high of 40.3°C, recorded in Lincolnshire in July 2022, and may break the June record of 35.6°C set in Hampshire in 1976. Schools have shut across the nation as authorities brace for the extreme heat.
Areas Under Red Warning
The red heat warning covers several regions:
- East Midlands: Northamptonshire
- East of England: Bedford, Cambridgeshire, Central Bedfordshire, Essex, Hertfordshire, Luton, Thurrock
- London and South East: Bracknell Forest, Buckinghamshire, East Sussex, Greater London, Hampshire, Kent, Milton Keynes, Oxfordshire, Reading, Slough, Surrey, West Berkshire, West Sussex, Windsor and Maidenhead, Wokingham
- South West England: Bath and North East Somerset, Bristol, Dorset, Gloucestershire, North Somerset, Somerset, South Gloucestershire, Swindon, Wiltshire
- Wales: Blaenau Gwent, Bridgend, Caerphilly, Cardiff, Carmarthenshire, Merthyr Tydfil, Monmouthshire, Neath Port Talbot, Newport, Powys, Rhondda Cynon Taf, Swansea, Torfaen, Vale of Glamorgan
- West Midlands: Herefordshire, Warwickshire, West Midlands Conurbation, Worcestershire
How to Stay Safe in the Heat
The government has issued tips for coping with the hot weather:
- Avoid the sun between 11am and 3pm. If outdoors, use high-protection sunscreen, wear a wide-brimmed hat, and seek shade.
- Keep your home cool: close windows and curtains facing the sun during the day. Open windows at night if the air is cooler outside. Ensure airflow through the home.
- Limit strenuous activity; plan exercise for cooler times like early morning or evening.
- Avoid hot, closed spaces such as stationary cars.
- Wear loose, light-colored clothing made from breathable natural fabrics like cotton or linen.
- Stay hydrated throughout the day. If sweating heavily, consider rehydration drinks. Limit caffeine and alcohol, which contribute to dehydration.
- Spray or sponge skin with cool water. Use cold packs wrapped in a cloth under armpits or on the neck.
- Turn off non-essential electronics like TVs, laptops, and chargers, which generate heat.
With temperatures soaring, the UK Health Security Agency has also issued red health alerts. The public is urged to take precautions and look out for vulnerable individuals, particularly the elderly and those with underlying health conditions.
