How hot is too hot for people?
“People can lose the ability to rid of heat and stop functioning optimally when temperatures reach beyond 40C,” according to new research from the University of Roehampton in England,“The thermoneutral zone is a range of temperatures in which the body doesn’t have to increase its metabolic rate or exert more energy to maintain its ideal core temperature of 37C.”
Studies show that the zone’s lower limit is 28C and at this temperature the body expends more energy to maintain its ideal temperature and shivering can start. To cool down at higher temperatures, the body sweats and blood vessels move closer to the skin surface to increase heat loss.Your Midday Sun From our newsroom to your inbox at noon, the latest headlines, stories, opinion and photos from the Toronto Sun.By clicking on the sign up button you consent to receive the above newsletter from Postmedia Network Inc. You may unsubscribe any time by clicking on the unsubscribe link at the bottom of our emails or any newsletter. Postmedia Network Inc. | 365 Bloor Street East, Toronto, Ontario, M4W 3L4 | 416-383-2300A welcome email is on its way.
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