A short spell in a heat chamber at the University of Brighton showed Alec Luhn that his body is not adapted to high temperatures – but regular exposure can train the body to respond more effectively

Are you still feeling the after-effects of the June scorcher – and bracing for the impact of yet more hot weather? Katie Rosseinsky asks the experts what successive heatwaves are…

Longer-lasting hot spells and high temperatures at night are making it harder to cope, leading to thousands more deaths from extreme heat