Extreme heat increases health risks during outdoor exercise

Vocabulary: I will read the words, meanings, and sample sentences. Then, repeat after me. heat index /HEET in-deks/ [noun] – a measure that combines air temperature and humidity to show how hot it feels The school canceled outdoor activities because the heat index reached dangerous levels. dehydration /dee-hahy-DREY-shuhn/ [noun] – a condition that happens when the body loses too much water After hiking for hours without water, she experienced signs of dehydration. cramp /kramp/ [noun] – painful and sudden tightening of muscles The swimmer had to stop the race because of leg cramps. paramount /PAR-uh-mount/ [adjective] – more important than anything else Safety is paramount when working with electrical equipment….
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