The central and northeastern United States are in the grips of a heatwave, with decades-old temperature records being broken and some 80 million people sweating under heat advisories or excessive heat warnings. While we have to put ourselves first, spare a thought for your constant digital companion -- your smartphone.
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Clad in rubber cases, carried in pockets or bags, and left in cradles on car dashboards to cook, it's very easy for smartphones to hit the point where they start to overheat. Once smartphones hit around 95