Innovation

When Is the Temperature Outside Too High for Your Body?

HELTER SWELTER

It’s not just the heat—humidity plays a very key role in how your body handles rising mercury.

2023-07-18T115953Z_1883549536_RC2M52AY5XZR_RTRMADP_3_EUROPE-WEATHER-ITALY_ja3s1f
REMO CASILLI

By W. Larry Kenney, Daniel Vecellio, Rachel Cottle, and S. Tony Wolf

Extreme heat has been breaking records across Europe, Asia and North America, with millions of people sweltering in heat and humidity well above “normal” for days on end.

Death Valley hit a temperature of 128

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