https://www.eurekalert.org/pub_releases/2020-10/smu-sir102020.php
News Release 20-Oct-2020
Slinging ink, raising temperatures
Southern Methodist University
You've heard that they can sag with age, perpetuate the name of a regrettable ex, or reveal an embarrassing inability to spell. But tattoos may also impair the way we sweat, potentially causing the body to overheat if the tattoos cover a large area of the body.
A team of researchers that includes SMU physiologist Scott L. Davis outlined the connection between tattoos and damage to sweat glands in a study published in the Journal of Applied Physiology. Their study of tattooed skin and adjacent non-tattooed skin on the arms of an evenly-divided group of men and women found that the tattooed sections of skin had reduced sweat rates.
That's a potential problem because sweating is how the body cools itself and regulates its temperature.
"Any damage to eccrine (sweat) glands within the skin can impair sweating response and potentially increase the risk of overheating if the damage covers a large enough body surface area," Davis said.
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