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UK Feels Chilly Despite Heatwave: Body Acclimatization Explained
16 Jul
Summary
- Bodies adapt to sustained heat within two weeks, making warmer temperatures feel cooler.
- Some social media users report feeling cold and wearing extra layers in 24-29°C.
- The UK's third heatwave of 2026 is expected to end this week with cooling temperatures.

A surprising phenomenon is emerging in the UK, where many are reporting feeling chilly despite ongoing high temperatures. Social media buzz highlights individuals needing extra layers during the day, even when mercury readings hover around 24-29°C. This shift is attributed to heat acclimatization, a physiological process where the body adapts to sustained heat exposure.
Experts explain that the body's adaptation to heat typically takes about two weeks. This process leads to physiological changes that make high temperatures feel less intense. However, prolonged exposure can also carry health risks, including heat exhaustion and heat stroke.
The current heatwave, which has brought record-breaking temperatures and associated health issues, is expected to end by the weekend. Meteorologists anticipate a shift in weather patterns, allowing fresher air to circulate and bringing temperatures down from the low 30s to the mid-to-high 20s Celsius by Saturday and Sunday.