BBC - The Survivability Of 50C - Health Effects & More
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Research has shown that when the temperature gets to 35C, accompanied by high humidity, health is put at danger. Once 40C is reached, it can be dangerous even with low humidity levels. Suffice to say at 50C, the risk is even higher.
Much also depends if an individual falls into one of the vulnerable categories. Older people, babies and young children and pregnant women are all more susceptible to extremes in heat as are those with chronic conditions such as heart or breathing problems. Certain types of medication or infections can have an effect too.
During heatwaves the public are advised to take precautions, such as drinking lots of water, avoiding strenuous exercise and dressing sensibly in lightweight and light-coloured clothes. But in extreme heat it is essential to find a cool environment in which to artificially reduce the body's temperature.
Professor Virginia Murray, of the Health Protection Agency, who has studied the effect of heat on the body, says: "What is really frightening is when the body is not able to cool itself down. "That can happen when it is really hot during the day and night. The body does not get a chance to get rid of the heat.
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http://www.bbc.co.uk/news/world-asia-20956421
