Researchers at Alma College in Michigan, U.S.A, have found that people with tattooed skin produce less sweat in comparison to those with non-tattooed skin.
Along with this, the sweat of tattooed people contained almost twice the amount of sodium.
A reduction in the amount we sweat can potentially lead to dangerous outcomes, even leading us to overheat and suffer heat stroke.
The research also said that the increased loss of sodium in tattooed-skin could mean you become dehydrated quicker, suffering from more cramp.
Well we wish we knew that BEFORE we got tattoos…