Can we make tattoos both beautiful and functional? Nanotechnologist Carson Bruns shares his work creating high-tech tattoos that react to their environment -- like color-changing ink that can tell you when you're getting a sunburn -- and shows exciting ways they can deliver real-time information about our health.

Did you know that tattooing is an ancient practice? Yet in thousands of years, we've never radically upgraded the technology. In this jaw-dropping talk, nanotechnologist Carson Bruns demonstrates futuristic tattoos that aren't just beautiful but are functional too. This talk was given at a TEDx event using the TED conference format but independ...