ScienceTattoos and health05:13This browser does not support the video element.Science11/15/2015November 15, 2015Biophysicist Wolfgang Bäumler wants to establish whether tattoos have a long-term impact on health. Little is known about the issue. So far, he has found that the pigments travel around the body and stain lymph nodes in a wide palette of colors.Copy linkAdvertisement