What do heatwaves do to the body and who is most at risk? - BBC News

Heat has been spiking in the US and Canada. What impact do high temperatures have on our bodies?

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Watch: The heat index explained in 90 seconds

The world's average daily temperature reached a new record in the first week of July - and southern Europe, the south-western US and parts of China are continuing to bake in extreme heat.

Heat can affect anyone, but some vulnerable groups, like older people and babies, run a greater risk of serious harm.

Here's what you need to know about the effects of heat on the body and how to stay cool.

https://www.bbc.co.uk/news/world-us-canada-66158847?at_medium=RSS&at_campaign=KARANGA

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