The Biden administration cited heat waves and the warming climate as serious health threats. Here's what you should know about heat and health.
The way heat and humidity affect people depends on factors like the weather that's typical where they are. Hans Huber/Westend61 via Getty Images
“Heat waves can kill via the dehydration caused by heavy sweating; the altered sodium and potassium concentrations in the blood confuse both heart and nerve cells, and so breathing or heartbeat may suddenly stop,” he wrote. In a rare lab test of the human body’s heat tolerance, the researchers found that the limit is lower than previously thought. When the air temperature is around 100 degrees Fahrenheit , people can begin to feel ill effects at just 60% humidity — a higher temperature and lower humidity than researchers determined in 2010.
3. Age mattersExtremely hot whether is particularly dangerous for those over 70, according to family physician Dr. Gabriel Neal, who teaches at the Texas A&M Health Science Center College of Medicine. 4. Wet or dry, hot is hotIt’s the heat and the humidity, wrote Mississippi State University exercise physiologist JohnEric Smith.
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