Tattooing is on the rise, but new research says people are regretting them more and more. Today we explain the science behind how tattoos work, the history of tattooing on humans (and why we've done it for thousands of years) and how tattoo regret might be on the rise. For more Sidenote Podcast episodes: http://sidenotepodcast.com/ Sources and Further Reading: https://pubmed.ncbi.nlm.nih.gov/17536445/ https://bmcpsychology.biomedcentral.com/articles/10.1186/s40359-022-00811-x https://www.psypost.org/2022/07/tattoos-and-piercings-are-more-common-among-those-who-experienced-childhood-abuse-and-neglect-63440 https://www.nature.com/articles/s41598-017-11721-z