A heatwave is generally defined as a period of unusually hot weather lasting more than two days. In London, a heatwave means three or more consecutive days of weather above 28°… See more

The human body responds to high temperatures in two key ways: dilating blood vessels in the skin and producing sweat. Increasing blood flow towards the skin allows … See more

During heatwaves, there is a higher incidence of death from cardiovascular and respiratory diseases. But it isn’t necessarily clear when an individual’s death was caused by … See more

The people most at risk from high temperatures are those who are elderly, are isolated, have pre-existing heart conditions and don’t have access to air conditioning, studies sug… See more

In the US, about 25,000 children a year are born earlier than they would otherwise have been due to exposure to extreme heat, one study found. Another discovered that in lower to mi… See more