health
Met Office issues rare red weather warning for Wednesday and Thursday
UK Health Security Agency also issues red heat alert for six English regions, indicating risk to life even for the healthy

TL;DR
- A rare red weather warning has been issued by the Met Office for Wednesday and Thursday due to extreme heat and humidity.
- A red heat health alert, indicating a risk to life, has been issued by the UK Health Security Agency for six regions of England.
- The affected areas include southern Wales, London, and a large swathe of central and southern England.
- Temperatures are expected to exceed 37C, with high humidity exacerbating health impacts and leading to very warm nights.
- Significant disruption to travel, energy supplies, and daily life is anticipated.
- Some schools are closing early, relaxing uniform rules, or modifying activities to cope with the heat.
- Experts warn that the UK's infrastructure is not prepared for such temperatures and that similar heatwaves will become more common due to climate change.