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Researchers have found that tattoos may impair natural sweating, potentially causing the body to overheat. Unsplash

Researchers have found that tattoos may impair natural sweating, potentially causing the body to overheat if the tattoos cover a large area of the body.

In the study, published in the Journal of Applied Physiology, the research team outlined the connection between tattoos and damage to sweat glands.


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.

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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,” said study author Scott L Davis from University of Texas (UT Southwestern) in the US.

Eccrine sweat glands, which are found in most skin across the body, produce sweat to cool the body. The human body must regulate its temperature for survival.


Applying a tattoo typically requires puncturing the skin with needles 50 to 3,000 times per minute, at a depth of 1-5 millimeters which could result in sweat gland damage. Unsplash

In the study, the research team determined sweating rates in the upper and lower arms of people with tattoos by comparing at least 5.6 square centimeters of tattooed skin with adjacent non-tattooed skin.

Ten people – both men and women – participated in the study.

These volunteers wore a special tube-lined suit that circulated hot water in excess of 120 degrees Fahrenheit for 30 minutes to increase core temperatures and measure the level of sweating.

Want to read more in Hindi? Checkout: लाखों की तादाद में इंसानों पर राज करेंगी मशीनें

Tattooed and non-tattooed areas of skin both began to sweat at around the same time. But tattooed areas ultimately produced less sweat than areas without tattoos.

The findings suggest that even though nerve signals to sweat glands weren’t affected in tattooed skin, the sweat glands themselves were likely damaged during tattooing.

Tattoos are made permanent by injecting ink through the thin layer of outer skin into the middle layer of skin known as the dermis, which contains connective tissue, hair follicles, and sweat glands.

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Applying a tattoo typically requires puncturing the skin with needles 50 to 3,000 times per minute, at a depth of 1-5 millimeters which could result in sweat gland damage.

“These data indicate that the collateral effects of the tattooing process negatively impact eccrine sweat gland function and could be considered a potential long-term complication or side effect of this cosmetic procedure,” researchers wrote. (IANS)


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Singer Rihanna was honoured by Prime Minister Mia Mottley at an event which marked Barbados's new status as a republic, which was attended by Prince Charles. Addressing the pop star by her real name, the PM said: "Robyn Rihanna Fenty tomorrow morning shall have conferred upon her the order of national hero of Barbados."

Rihanna was then summoned from her seat to accept the honor, with the Prime Minister managing to rouse a laugh from the singer when she referenced her 2012 hit 'Diamonds', reports femalefirst.co.uk. She added: "On behalf of a grateful nation, but an even prouder people, we therefore present to you, the designee, for the national hero of Barbados." "And to accept on behalf of a grateful nation - you can come my dear - ambassador Robyn Rihanna Fenty, may you continue to shine like a diamond and bring honor to your nation." Rihanna, who was born in the St Michael parish of Barbados, found fame in 2005 after being spotted by a record producer and has since gone on to become one of the most successful female artists of all time with sales of over 250 million and recently reached billionaire status through her Fenty beauty brand.

The Prime Minister continued in her speech: "Commanding the imagination of the world through the pursuit of excellence, her creativity, her discipline, and above all else, her extraordinary commitment to the land of her birth. "Having satisfied that, Ambassador Robyn Rihanna Fenty has given service to Barbados which has been exemplified by visionary and pioneering leadership, extraordinary achievement and the attaining of the highest excellence to the Government of Barbados." It comes after a historic move for Barbados, which has become a republic after almost 400 years and welcomes its first president, Sandra Mason, after removing Queen Elizabeth as head of state. (IANS/ MBI)


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