Knowing how heat and humidity affect your body can help you stay safe during heat waves
- Written by JohnEric W. Smith, Associate Professor of Exercise Physiology, Mississippi State University
 
Record-breaking triple-digit heat in Olympia, Wash., on June 28, 2021.AP Photo/Ted S. WarrenLess than a month into North America’s official summer, heat waves are blistering much of the West. California and the Southwest are facing excessive heat watches for the second time, after a mid-June heat wave pushed temperatures above 100 F (38 C).
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Read more: Knowing how heat and humidity affect your body can help you stay safe during heat waves


