Tattoos are personal permanent images on our body that carry meaning and commemoration. At least 14% of U.S. adults have at least one tattoo and the popularity of getting inked is on the rise. Nearly 36% of millennials have a tattoo and it seems to be a reoccurring trend. The athletic community also has a high incidence of players with tattoos.
As much color as these skin decorations bring to the body, they may actually affect cause thermoregulatory problems. This is particularly true for people with sleeves, because the arms have a lot of sweat glands. Compared to a person with no tattoos, skin with ink on it sweats about 50% less. The type of sweat released on a tattooed area contains more concentrated amounts of sodium. Dyed skin changes the saltiness of our sweat. When the dye is injected into the skin, its home is same layer where our sweat glands live. Sweat glands excrete liquid onto the surface of the skin, but before it dries or we whip it away, our skin usually reabsorbs quite a bit of the lost sodium and electrolytes. Tattoos block this reabsorption. The age of tattoo does not influence this sweat alteration. New or old, about 50% of sweat is being produced. It is possible that the sweat glands after being inflamed from the 3,000 or more needles puncturing the skin, are now physiologically different.
This is not a serious condition to sweat about. The body is still able to cool itself down despite tattoos covering perspiration avenues. A person who is covered in tattoos, exercising or working in high heat, or are sensitive to heat, might be at risk. When we exercise we do want to be able to cool down to keep our stamina and performance up. Research has not been adequately performed to determine if the areas of the skin lacking tattoos make up for the sweat not readily perspired by the covered tattoo areas. Don’t worry that if you sweat less you will lose less weight. We all perspire different amounts and quantity of sweat does not equate to quantity of weight loss. As soon as the body become rehydrated, that water loss is replenished. Excessive sweating for weight loss with saunas or body wraps are popular methods among wrestlers and boxers. Maybe they should skip out on marking their bodies.
Sweat is the body’s air conditioning system. Tattoos might alter the desired temperature. 50% of NBA players have multiple tattoos and there hasn’t been a report yet of tattoo related injuries. Your skin will still get shiny with perspiration, but maybe not the same amount or with added salt. Be sure to hydrate, be sure to exercise, and be sure to get a tattoo you want to keep.
Dr. Megan Johnson McCullough, owner of Every BODY’s Fit in Oceanside CA, is a NASM Master Trainer, AFAA group exercise instructor, and specializes in Fitness Nutrition, Weight Management, Senior Fitness, Corrective Exercise, and Drug and Alcohol Recovery. She’s also a Wellness Coach, holds an M.A. Physical Education & Health and a Ph.D in Health and Human Performance. She is a professional natural bodybuilder, fitness model, and published author.
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