A tattoo that changes color sounds cool as is, but one that also saves lives?! Doesn’t get much more incredible than that. That’s right, researchers are now testing color changing tattoos that are actually health trackers. According to Mashable, traditional tattoo ink is replaced with different biosensors that can change color according to changes in body chemistry, like changes in blood sugar or sodium.
A collaboration between MIT and Harvard University, the new ink technology is currently undergoing preliminary tests and still awaits human trials.